Structure-activity relationship of estrogens: receptor affinity and estrogen antagonist activity of certain (E)- and (2)-1,2,3-triaryl-2-propen-2-ones
作者:Shubhra Mittal、Susheel Durani、Randhir S. Kapil
DOI:10.1021/jm00382a019
日期:1985.4
(E)- and (Z)-1,2,3-triphenyl-2-propen-1-ones and some of their phenolic and alkoxy analogues, substituted at the para position in one or more of the aromatic rings, were synthesized and assigned geometry on the basis of their spectroscopic data. The structure-activity relationship of the triarylpropenones was studied from the point of view of their estrogen receptor affinity and estrogen agonist and antagonist activities. (E)- as well as (Z)-propenones were found to compete with estradiol for binding with the mouse uterine cytosol receptors, with phenolic analogues usually more potent than the unsubstituted as well as alkoxypropenones. The (E)-propenones, which have now emerged as a new group of estrogen receptor ligands, were found to differ from Z isomers quite markedly in their binding specificities. The uterotrophic and antiuterotrophic assays in immature mice revealed that while some of the compounds were marginally estrogenic, nearly all the isomeric propenones were antiestrogenic to a varying degree.
Asymmetric Hydrogenation of Racemic Allylic Alcohols via an Isomerization–Dynamic Kinetic Resolution Cascade
作者:Kun Wang、Saisai Niu、Xin Guo、Weijun Tang、Dong Xue、Jianliang Xiao、Huaming Sun、Chao Wang
DOI:10.1021/acs.joc.1c02916
日期:2022.3.4
Prochiral racemic allylic alcohols are converted to enantioenriched chiral alcohols bearing adjacent stereocenters catalyzed by a diamine diphosphine Ru complex in the presence of tBuOK. The protocol features a broad substrate scope (56 examples) and high diastereo- and enantioselectivities (up to >99:1 dr, >99% ee) and could be applied to the synthesis of enantioenriched chromane and indane compounds
Klages; Tetzner, Chemische Berichte, 1902, vol. 35, p. 3970
作者:Klages、Tetzner
DOI:——
日期:——
Soto, Jose L.; Seoane, Carlos; Martin, Nazario, Heterocycles, 1983, vol. 20, # 5, p. 803 - 812
作者:Soto, Jose L.、Seoane, Carlos、Martin, Nazario、Blanco, Luis A.
DOI:——
日期:——
Synthesis and Reactivity of Dioxazirconacyclohexenes: Development of a Zirconium–Oxo-Mediated Alkyne–Aldehyde Coupling Reaction
作者:Gregory D. Kortman、Meghan J. Orr、Kami L. Hull
DOI:10.1021/om5008727
日期:2015.3.23
The zirconium-oxo-mediated coupling of an alkyne and an aldehyde for the synthesis of alpha,beta-unsaturated ketones is presented. Each intermediate along the reaction pathway has been fully characterized, and the scope of the alkynes and aldehydes has been explored.