Recently I am researching about PICTET-SPENGLER REACTION; CRYSTAL-STRUCTURE; EFFICACY, Saw an article supported by the Shandong Natural Science FoundationNatural Science Foundation of Shandong Province [ZR2017MH093]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [81973200]; China-Australia Centre for Health Sciences Research. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Yang, EL; Sun, B; Huang, ZY; Lin, JG; Jiao, B; Xiang, L. The CAS is 100-83-4. Through research, I have a further understanding and discovery of 3-Hydroxybenzaldehyde. Quality Control of 3-Hydroxybenzaldehyde
A green, biomimetic, phosphate-mediated Pictet-Spengler reaction was used in the synthesis of three catecholic tetrahydroisoquinolines, 1, 2, and 12, present in the medicinal plant Portulaca oleracea, as well as their analogues 3-11, 13, and 14, with dopamine hydrochloride and aldehydes as the substrates. AB-8 macroporous resin column chromatography was applied for purification of the products from the one-step high efficacy synthesis. It eliminated the difficulties in the isolation of catecholic tetrahydroisoquinolines from the aqueous reaction system and unreacted dopamine hydrochloride. Activity screening in CHO-K1/G alpha 15 cell models consistently expressing alpha(1B)-, beta(1)-, or beta(2)-adrenergic receptors indicated that 12 and 2, compounds that are present in P. oleracea, possessed the most potent beta(2)-adrenergic receptor agonist activity and 2 was a selective beta(2)-adrenergic receptor agonist at the concentration of 100 mu M. Both 12 and 2 exhibited dose-dependent bronchodilator effects on the histamine-induced contraction of isolated guinea-pig tracheal smooth muscle, with EC50 values of 0.8 and 2.8 mu M, respectively. These findings explain the scientific rationale of P. oleracea use as an antiasthmatic herb in folk medicine and provide the basis for the discovery of novel antiasthma drugs.
Quality Control of 3-Hydroxybenzaldehyde. About 3-Hydroxybenzaldehyde, If you have any questions, you can contact Yang, EL; Sun, B; Huang, ZY; Lin, JG; Jiao, B; Xiang, L 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