6653-80-1Relevant articles and documents
In vitro study and structure-activity relationship analysis of stilbenoid derivatives as powerful vasorelaxants: Discovery of new lead compound
Chan, Sock Ying,Loh, Yean Chun,Oo, Chuan Wei,Yam, Mun Fei
, (2020/10/12)
The development of vasorelaxant as the antihypertensive drug is important as it produces a rapid and direct relaxation effect on the blood vessel muscles. Resveratrol (RV), as the most widely studied stilbenoid and the lead compound, inducing the excellent vasorelaxation effect through the multiple signalling pathways. In this study, the in vitro vascular response of the synthesized trans-stilbenoid derivatives, SB 1-8e were primarily evaluated by employing the phenylephrine (PE)-precontracted endothelium-intact isolated aortic rings. Herein we report trans-3,4,4′-trihydroxystilbene (SB 8b) exhibited surprisingly more than 2-fold improvement to the maximal relaxation (Rmax) of RV. This article also highlights the characterization of the aromatic protons in terms of their unique splitting patterns in 1H NMR.
Preparation method of dapagliflozin intermediate
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Paragraph 0026; 0027; 0028; 0029, (2018/03/01)
The invention provides a preparation method of a dapagliflozin intermediate. The preparation method comprises the following steps: (1) by taking 4-methylphenol and bromoethane as raw materials, a polar solvent as a reaction solvent and an inorganic base as a catalyst, carrying out reaction for preparing 4-ethyoxyl methylbenzene; (2) by taking N-chlorosuccinimide and 4-ethyoxyl methylbenzene obtained in the step (1) as raw materials, a non-polar solvent as a reaction solvent and dibenzoyl peroxide as an initiator, carrying out reaction, thus obtaining 4-ethyoxyl benzyl chloride; (3) dissolving 4-ethyoxyl benzyl chloride obtained in the step (2) and 4-bromaniline into ethyl acetate, adding a catalyst lewis acid, and carrying out reaction, thus obtaining 5-bromo-2-amino-4-ethyoxyl diphenylmethane; and (4) carrying out diazotization reaction on 5-bromo-2-amino-4-ethyoxyl diphenylmethane obtained in the step (3), and then reacting with cuprous chloride, thus synthesizing 5-bromo-2-chloro-4'-ethyoxyl diphenylmethane. The preparation method provided by the invention has the advantages of low cost, low environmental stress and short synthetic route.
BICYCLIC COMPOUND
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Page/Page column 240, (2011/08/08)
The present invention provides a compound having an ACC inhibitory action, which is useful as an agent for the prophylaxis or treatment of obesity, diabetes, hypertension, hyperlipidemia, cardiac failure, diabetic complications, metabolic syndrome, sarcopenia, cancer and the like, and has superior efficacy. The present invention relates to a compound represented by the formula (I): wherein each symbol is as defined in the specification, or a salt thereof.