Synthesis of (E)-cinnamyl ester derivatives via a greener Steglich esterification
作者:Andrew B. Lutjen、Mackenzie A. Quirk、Allycia M. Barbera、Erin M. Kolonko
DOI:10.1016/j.bmc.2018.04.007
日期:2018.10
Cinnamic acid derivatives are known antifungal, antimicrobial, antioxidant, and anticancer compounds. We have developed a facile and mild methodology for the synthesis of (E)-cinnamate derivatives using a modified Steglich esterification of (E)-cinnamic acid. Using acetonitrile as the solvent, rather than the typical chlorinated solvent, and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC) as the
The 17 beta-hydroxysteroid dehydrogenases (17 beta-HSDs) modulate the biological potency of estrogens and androgens by interconversion of inactive 17-keto-steroids and their active 17 beta-hydroxy- counterparts. We have shown previously that flavonoids are potentially useful lead compounds for developing inhibitors of 17 beta-HSDs. In this paper, we describe the synthesis and biochemical evaluation of structurally analogous inhibitors, the trans-cinnamic acid esters and related compounds. Additionally, quantitative structure-activity relationship (QSAR) and modelling studies were performed to rationalize the results and to suggest further optimization. The results stress the importance of a hydrogen bond with Asn154 and hydrophobic interactions with the aromatic side chain of Tyr212 for optimal molecular recognition. (c) 2006 Elsevier Ltd. All rights reserved.
Dual aminoquinolate diarylboron and nickel catalysed metallaphotoredox platform for carbon–oxygen bond construction