Discover the magic of the 3-Hydroxybenzaldehyde

Recommanded Product: 3-Hydroxybenzaldehyde. Bye, fridends, I hope you can learn more about C7H6O2, If you have any questions, you can browse other blog as well. See you lster.

An article Ionic liquid-assisted synthesis of dihydropyrimidin(thi)one Biginelli adducts and investigation of their mechanism of urease inhibition WOS:000488843000015 published article about BOVINE SERUM-ALBUMIN; ONE-POT SYNTHESIS; MOLECULAR DOCKING; HELICOBACTER-PYLORI; NATURAL-PRODUCTS; ACID; 3,4-DIHYDROPYRIMIDIN-2(1H)-ONES; EFFICIENT; CYCLOADDITION; DERIVATIVES in [Braga, Aniris Cafiero; de Fatima, Angelo] Univ Fed Minas Gerais, Dept Quim, GEQOB, Belo Horizonte, MG, Brazil; [Silva, Thamara Ferreira; Modolo, Luzia Valentina] Univ Fed Minas Gerais, Inst Ciencias Biol, Dept Bot, Grp Estudos Bioquim Plantas GEBioPlan, Belo Horizonte, MG, Brazil; [Silva Maciel, Thamilla Maria; Figueiredo, Isis Martins; Caldas Santos, Josue Carinhanha] Univ Fed Alagoas, Inst Quim & Biotecnol, Lab Instrumentacao & Desenvolvimento Quim Analit, Maceio, AL, Brazil; [Dantas da Silva, Edjan Carlos; Da Silva-Junior, Edeildo Ferreira; de Aquino, Thiago Mendonca] Univ Fed Alagoas, Inst Quim & Biotecnol, NAPRMN, Maceio, AL, Brazil in 2019.0, Cited 80.0. The Name is 3-Hydroxybenzaldehyde. Through research, I have a further understanding and discovery of 100-83-4. Recommanded Product: 3-Hydroxybenzaldehyde

Twenty-six Biginelli adducts were synthesized through an ionic liquid-assisted synthesis with up to 92% yield. Sixteen of these Biginelli adducts were then assayed to determine their antiureolytic activity against purified urease from jack beans. The substances BA7-S, BA9-S and BA11-S were shown to be as efficient inhibitors as hydroxyurea, a positive control used in in vitro screening assay against urease. Fluorescence studies revealed that BA7-S, BA9-S, BA11-S and BA5-S possessed high binding constant values of 5.95, 6.72, 4.55, and 4.28 M-1, respectively, while BAS12-S, without substituents, showed a low value of log K-b = 2.16 M-1. In addition, in the most thermodynamically favorable BA5-S and BA7-S urease complexes, the corresponding Biginelli adducts were capable of interacting with the active site of urease through non-ionic interactions, such as hydrophobic interactions, or hydrogen and van der Waals interactions, respectively. In silico studies also supported that the BAs interact with the active site, confirming the fluorescence and kinetic assay studies, which clearly indicate that BA5-S and BA7-S are competitive inhibitors (K-i = 0.96 and 0.57 mM, respectively). In silico studies also showed that the substituents in the aromatic ring interact with Ni atoms to form a stable complex.

Recommanded Product: 3-Hydroxybenzaldehyde. Bye, fridends, I hope you can learn more about C7H6O2, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Downstream Synthetic Route Of Mequinol

Product Details of 150-76-5. About Mequinol, If you have any questions, you can contact Bellotti, P; Koy, M; Gutheil, C; Heuvel, S; Glorius, F or concate me.

Product Details of 150-76-5. Authors Bellotti, P; Koy, M; Gutheil, C; Heuvel, S; Glorius, F in ROYAL SOC CHEMISTRY published article about in [Bellotti, Peter; Koy, Maximilian; Gutheil, Christian; Heuvel, Steffen; Glorius, Frank] Westfal Wilhelms Univ Munster, Organ Chem Inst, Corrensstr 40, D-48149 Munster, Germany in 2021, Cited 66. The Name is Mequinol. Through research, I have a further understanding and discovery of 150-76-5

A highly modular radical cascade strategy based upon radical cyclisation/allylic substitution sequence between alkyl/aryl bromides, 1,3-dienes and nucleophiles ranging from sulfinates to amines, phenols and 1,3-dicarbonyls is described (>80 examples). Palladium phosphine complexes – which merge properties of photo- and cross coupling-catalysts – allow to forge three bonds with complete 1,4-selectivity and stereocontrol, delivering highly value added carbocyclic and heterocyclic motifs that can feature – inter alia – vicinal quaternary centers, free protic groups, gem-difluoro motifs and strained rings. Furthermore, a flow chemistry approach was for the first time applied in palladium-photocatalysed endeavors involving radicals.

Product Details of 150-76-5. About Mequinol, If you have any questions, you can contact Bellotti, P; Koy, M; Gutheil, C; Heuvel, S; Glorius, F or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Why Are Children Getting Addicted To Mequinol

Safety of Mequinol. Welcome to talk about 150-76-5, If you have any questions, you can contact Palakhachane, S; Ketkaew, Y; Chuaypen, N; Sirirak, J; Boonsombat, J; Ruchirawat, S; Tangkijvanich, P; Suksamrarn, A; Limpachayaporn, P or send Email.

Recently I am researching about BIOLOGICAL EVALUATION; ANTITUMOR-ACTIVITY; DERIVATIVES BEARING; MULTIKINASE INHIBITOR; CLICK CHEMISTRY; DESIGN; CANCER; DISCOVERY; MOIETY; METASTASIS, Saw an article supported by the Institute for the Promotion of Teaching Science and Technology (IPST) [19/2558]; The Thailand Research FundThailand Research Fund (TRF) [RTA6280004]; Department of Chemistry, Faculty of Science, Silpakorn University; Center of Excellence in Hepatitis and Liver Cancer, Department of Biochemistry, Faculty of Medicine, Chulalongkorn University. Published in ACADEMIC PRESS INC ELSEVIER SCIENCE in SAN DIEGO ,Authors: Palakhachane, S; Ketkaew, Y; Chuaypen, N; Sirirak, J; Boonsombat, J; Ruchirawat, S; Tangkijvanich, P; Suksamrarn, A; Limpachayaporn, P. The CAS is 150-76-5. Through research, I have a further understanding and discovery of Mequinol. Safety of Mequinol

A series of 1,2,3-triazole-containing Sorafenib analogues, in which the aryl urea moiety of Sorafenib (1) was replaced with a 1,2,3-triazole ring linking a substituted phenoxy fragment, were prepared successfully via Huisgen 1,3-dipolar cycloaddition and nucleophilic aromatic substitution. The studies of cytotoxicity towards human hepatocellular carcinoma (HCC) cell lines, HepG2 and Huh7, indicated that p-tert-butylphenoxy analogue 2m showed significant inhibitory activity against Huh7 with IC50 = 5.67 +/- 0.57 mu M. More importantly, 2m showed low cytotoxicity against human embryonal lung fibroblast cell line, MRC-5, with IC50 > 100 mu M, suggesting its highly selective cytotoxic activity (SI > 17.6) towards Huh7 which is much superior to that of Sorafenib (SI = 6.73). The molecular docking studies revealed that the analogue 2m bound B-RAF near the binding position of Sorafenib, while it interacted VEGFR2 efficiently at the same binding position of Sorafenib. However, 2m exhibited moderate inhibitory activity toward B-RAF, implying that its anti-Huh7 effect might not strictly relate to inhibition of B-RAF. Wound healing and BrdU cell proliferation assays confirmed anti-cell migration and anti-cell proliferative activities towards Huh7. With its inhibitory efficiency and high safety profile, 2m has been identified as a promising candidate for the treatment of HCC.

Safety of Mequinol. Welcome to talk about 150-76-5, If you have any questions, you can contact Palakhachane, S; Ketkaew, Y; Chuaypen, N; Sirirak, J; Boonsombat, J; Ruchirawat, S; Tangkijvanich, P; Suksamrarn, A; Limpachayaporn, P or send Email.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Something interesting about Benzyl Alcohol

SDS of cas: 100-51-6. Bye, fridends, I hope you can learn more about C7H8O, If you have any questions, you can browse other blog as well. See you lster.

I found the field of Chemistry very interesting. Saw the article Rapid, chemoselective and mild oxidation protocol for alcohols and ethers with recyclable N-chloro-N-(phenylsulfonyl)benzenesulfonamide published in 2021. SDS of cas: 100-51-6, Reprint Addresses Chaturbhuj, G (corresponding author), Inst Chem Technol, Mumbai 400019, Maharashtra, India.. The CAS is 100-51-6. Through research, I have a further understanding and discovery of Benzyl Alcohol

Chlorine is the 20th most abundant element on the earth compared to bromine, iodine, and fluorine, a sulfonimide reagent, N-chloro-N-(phenylsulfonyl)benzenesulfonamide (NCBSI) was identified as a mild and selective oxidant. Without activation, the reagent was proved to oxidize primary and secondary alcohols as well as their symmetrical and mixed ethers to corresponding aldehydes and ketones. With recoverable PS-TEMPO catalyst, selective oxidation over chlorination of primary and secondary alcohols and their ethers with electron-donating substituents was achieved. The reagent precursor of NCBSI was recovered quantitatively and can be reused for synthesizing NCBSI. (C) 2021 Elsevier Ltd. All rights reserved.

SDS of cas: 100-51-6. Bye, fridends, I hope you can learn more about C7H8O, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Chemistry Milestones Of 3,4-Dimethoxybenzaldehyde

Welcome to talk about 120-14-9, If you have any questions, you can contact Shi, CZ; Li, FS; Chen, YQ; Lin, SJ; Hao, EJ; Guo, ZW; Wosqa, UT; Zhang, DD; Shi, L or send Email.. SDS of cas: 120-14-9

SDS of cas: 120-14-9. Authors Shi, CZ; Li, FS; Chen, YQ; Lin, SJ; Hao, EJ; Guo, ZW; Wosqa, UT; Zhang, DD; Shi, L in AMER CHEMICAL SOC published article about in [Shi, Caizhe; Li, Fusheng; Chen, Yuqing; Lin, Shuangjie; Guo, Zhuowen; Wosqa, Urwa Tul; Zhang, Dandan; Shi, Lei] Dalian Univ Technol, Zhang Dayu Sch Chem, State Key Lab Fine Chem, Dalian 116024, Liaoning, Peoples R China; [Hao, Erjun; Shi, Lei] Henan Normal Univ, Henan Key Lab Organ Funct Mol & Drug Innovat, Key Lab Green Chem Media & React, Minist Educ,Sch Chem & Chem Engn, Xinxiang 453007, Henan, Peoples R China in 2021.0, Cited 51.0. The Name is 3,4-Dimethoxybenzaldehyde. Through research, I have a further understanding and discovery of 120-14-9

The concept of umpolung reactivity of p-allylmetal complexes has been developed as a powerful method for the allylation of aldehydes. This paper describes the photocatalytic umpolung strategy for the synthesis of nucleophilic allylcobalt complexes through a single-electron-transfer (SET) process. This strategy enables the metallaphotoredox allylation of carbonyls with allyl acetate using organic N,N-diisopropylethylamine as the terminal reductant bypassing the use of a stoichiometric amount of metals. Ultraviolet-visible spectroscopy was used to monitor the redox changes of cobalt in the reaction.

Welcome to talk about 120-14-9, If you have any questions, you can contact Shi, CZ; Li, FS; Chen, YQ; Lin, SJ; Hao, EJ; Guo, ZW; Wosqa, UT; Zhang, DD; Shi, L or send Email.. SDS of cas: 120-14-9

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Chemical Properties and Facts of 3,4-Dimethoxybenzaldehyde

Quality Control of 3,4-Dimethoxybenzaldehyde. Welcome to talk about 120-14-9, If you have any questions, you can contact Ha, H; Choi, HJ; Park, H; Gwon, Y; Lee, J; Kwak, J; Kim, M; Jung, B or send Email.

Quality Control of 3,4-Dimethoxybenzaldehyde. Authors Ha, H; Choi, HJ; Park, H; Gwon, Y; Lee, J; Kwak, J; Kim, M; Jung, B in WILEY-V C H VERLAG GMBH published article about in [Ha, Hyeonbin; Choi, Ho Jeong; Kim, Min] Chungbuk Natl Univ, Dept Chem, Cheongju 28644, South Korea; [Park, Hahyoun; Gwon, Yunyeong; Lee, Jiin; Jung, Byunghyuck] Daegu Gyeongbuk Inst Sci & Technol DGIST, Dept Emerging Mat Sci, Daegu 42988, South Korea; [Kwak, Jaesung] Korea Res Inst Chem Technol KRICT, Infect Dis Therapeut Res Ctr, Daejeon 34114, South Korea in 2021.0, Cited 66.0. The Name is 3,4-Dimethoxybenzaldehyde. Through research, I have a further understanding and discovery of 120-14-9

The Pd-catalyzed gamma-position sp(3)-C-H arylation of primary amines bearing an aliphatic chain or cycloalkyl substituent and related mechanistic studies are disclosed. 3-Bromo-2-hydroxybenzaldehyde plays a key role in gamma-position sp(3)-C-H arylation as a transient directing group (TDG) to assist the regio- and stereoselective C-H activation of a Pd catalyst, and the development of a tandem reaction to transform 1 degrees-amines into gamma-aryl-substituted ketones demonstrates synthetic utility. Density functional theory (DFT)-based calculations revealed the detailed reaction mechanism and the origins of the high selectivity (gamma-position and cis-only). The X-ray crystal structure of the isolated endo-palladacycle intermediate supported the DFT results, and a kinetic isotope experiment confirmed the results of DFT calculations indicating that the C-H activation step via simultaneous palladation and deprotonation is rate-determining.

Quality Control of 3,4-Dimethoxybenzaldehyde. Welcome to talk about 120-14-9, If you have any questions, you can contact Ha, H; Choi, HJ; Park, H; Gwon, Y; Lee, J; Kwak, J; Kim, M; Jung, B or send Email.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Extracurricular laboratory: Synthetic route of 4-Methoxybenzaldehyde

Category: indole-building-block. Bye, fridends, I hope you can learn more about C8H8O2, If you have any questions, you can browse other blog as well. See you lster.

Category: indole-building-block. I found the field of Chemistry very interesting. Saw the article Novel, Chiral, and Enantiopure C-2-Symmetric Thioureas Promote Asymmetric Protio-Pictet-Spengler Reactions by Anion-Binding Catalysis published in 2021.0, Reprint Addresses Piersanti, G (corresponding author), Univ Urbino Carlo Bo, Dipartimento Sci Biomol, Pzza Rinascimento 6, I-61029 Urbino, Italy.. The CAS is 123-11-5. Through research, I have a further understanding and discovery of 4-Methoxybenzaldehyde.

Although anion-binding processes are well-known for their crucial role in molecular recognition, they have only recently been utilized for catalysis. Herein, a new class of chiral, enantiopure C-2-symmetrical thioureas that, in combination with 4-methoxybenzoic acid, promotes the enantioselective protio-Pictet-Spengler reaction to provide unprotected tetrahydro-beta-carbolines in good yields (40-93 %) and moderate-to-high enantioselectivities (34-95 % ee) in one step from tryptamine and aldehyde derivatives is described. The formation of a chiral catalyst-anion complex was explored by H-1 NMR.

Category: indole-building-block. Bye, fridends, I hope you can learn more about C8H8O2, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Extended knowledge of C7H8O2

About m-Methoxyphenol, If you have any questions, you can contact Lei, K; Li, P; Yang, XF; Wang, SB; Wang, XK; Hua, XW; Sun, B; Ji, LS; Xu, XH or concate me.. Recommanded Product: m-Methoxyphenol

Authors Lei, K; Li, P; Yang, XF; Wang, SB; Wang, XK; Hua, XW; Sun, B; Ji, LS; Xu, XH in AMER CHEMICAL SOC published article about ACID-DERIVATIVES; ANTIMICROBIAL ACTIVITY; CRYSTAL-STRUCTURE; TRIKETONE; ARABIDOPSIS; INHIBITORS; DISCOVERY in [Lei, Kang; Li, Pan; Wang, Shi-Ben; Wang, Xue-Kun; Hua, Xue-Wen; Sun, Bin; Ji, Lu-Sha] Liaocheng Univ, Sch Pharm, Liaocheng 252059, Shandong, Peoples R China; [Lei, Kang; Hua, Xue-Wen; Sun, Bin; Xu, Xiao-Hua] Nankai Univ, Inst Elementoorgan Chem, State Key Lab Elementoorgan Chem, Tianjin 300071, Peoples R China; [Yang, Xue-Fang] Shanxi Agr Univ, Coll Agr, Jinzhong 030800, Shanxi, Peoples R China in 2019.0, Cited 37.0. Recommanded Product: m-Methoxyphenol. The Name is m-Methoxyphenol. Through research, I have a further understanding and discovery of 150-19-6

In order to develop a novel herbicide containing the beta-triketone motif, a series of 4-hydroxyl-3-(2-phenoxyacetyl)-pyran-2-one derivatives were designed and synthesized. The bioassay results showed that compound II15 had good pre-emergent herbicidal activity even at a dosage of 187.5 g ha(-1). Moreover, compound II15 showed a broader spectrum of weed control when compared with a commercial herbicide 2,4-dichlorophenoxyacetic acid (2,4-D), and displayed good crop safety to Triticum aestivum L. and Zea mays Linn. when applied at 375 g ha(-1) under pre-emergence conditions, which indicated its great potential as a herbicide. More importantly, studying the molecular mode of action of compound II15 revealed that the novel triketone structure is a proherbicide of its corresponding phenoxyacetic acid auxin herbicide, which has a herbicidal mechanism similar to that of 2,4-D. The present work indicates that the 4-hydroxyl-3-(2-phenoxyacetyl)-pyran-2-one motif may be a potential lead structure for further development of novel auxin-type herbicides.

About m-Methoxyphenol, If you have any questions, you can contact Lei, K; Li, P; Yang, XF; Wang, SB; Wang, XK; Hua, XW; Sun, B; Ji, LS; Xu, XH or concate me.. Recommanded Product: m-Methoxyphenol

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

What Kind of Chemistry Facts Are We Going to Learn About 4-Hydroxyquinolin-2(1H)-one

Safety of 4-Hydroxyquinolin-2(1H)-one. About 4-Hydroxyquinolin-2(1H)-one, If you have any questions, you can contact Li, DD; Oku, N; Shinozaki, Y; Kurokawa, Y; Igarashi, Y or concate me.

Recently I am researching about 2,4-DIHYDROXYQUINOLINE; DERIVATIVES; QUINOLINE; ANALOGS, Saw an article supported by the JSPS KAKENHIMinistry of Education, Culture, Sports, Science and Technology, Japan (MEXT)Japan Society for the Promotion of ScienceGrants-in-Aid for Scientific Research (KAKENHI) [18K05827]; President’s Fund Initiative at Toyama Prefectural University FY2019. Published in BEILSTEIN-INSTITUT in FRANKFURT AM MAIN ,Authors: Li, DD; Oku, N; Shinozaki, Y; Kurokawa, Y; Igarashi, Y. The CAS is 86-95-3. Through research, I have a further understanding and discovery of 4-Hydroxyquinolin-2(1H)-one. Safety of 4-Hydroxyquinolin-2(1H)-one

4-Hydroxy-3-methyl-2(1H)-quinolone (1), a molecule known for a long time and recently discovered from a Brassicaceae plant Isatis tinctoria without providing sufficient evidence to support the structure, was isolated from a fermentation extract of Burkholderia sp. 3Y-MMP isolated from a soil by a Zn2+ enrichment culture. Detailed spectroscopic analyses by MS and NMR, combined with C-13 chemical shift comparison with literature values of the related compounds and a synthetic preparation of 1, allowed its first full NMR characterization and identification of 2-quinolone but not 2-quinolinol (2) as the preferred tautomer for this heterocyclic system. While the metal-chelating activity was negligible, compound 1 at 10 mu M, a concentration lower than that in liquid production cultures, quenched hydroxy radical-induced chemiluminescence emitted by luminol by 86%. Because some Burkholderia species are pathogenic to plants and animals, the above result suggests that 1 is a potential antioxidant to counteract reactive oxygen species-based immune response in the host organisms.

Safety of 4-Hydroxyquinolin-2(1H)-one. About 4-Hydroxyquinolin-2(1H)-one, If you have any questions, you can contact Li, DD; Oku, N; Shinozaki, Y; Kurokawa, Y; Igarashi, Y or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

The Best Chemistry compound:86-95-3

Bye, fridends, I hope you can learn more about C9H7NO2, If you have any questions, you can browse other blog as well. See you lster.. SDS of cas: 86-95-3

SDS of cas: 86-95-3. Marjani, AP; Khalafy, J; Farajollahi, A in [Marjani, Ahmad Poursattar; Khalafy, Jabbar; Farajollahi, Ayda] Urmia Univ, Dept Organ Chem, Fac Chem, Orumiyeh, Iran published Synthesis of Ethyl 2-Amino-4-benzoyl-5-oxo-5,6-dihydro-4H-pyrano[3,2-c]quinoline-3-carboxylates by a One-pot, Three-Component Reaction in the Presence of TPAB in 2019, Cited 41. The Name is 4-Hydroxyquinolin-2(1H)-one. Through research, I have a further understanding and discovery of 86-95-3.

In this research, in order to synthesize a series of ethyl 2-amino-4-benzoyl-5-oxo-5,6-dihydro-4H-pyrano[3,2-c]quinoline-3-carboxylates, a green and an efficient method is proposed through one-pot three-component reaction of substituted arylglyoxals, ethyl cyanoacetate, and 4-hydroxyquinolin-2(1H)-one in the presence of terapropylammonium bromide as a catalyst in good yields. All synthesized new substances were characterized by FTIR, H-1-NMR, and C-13-NMR spectral data and elemental analysis.

Bye, fridends, I hope you can learn more about C9H7NO2, If you have any questions, you can browse other blog as well. See you lster.. SDS of cas: 86-95-3

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles