A practical route for the highly stereoselective synthesis of tetrasubstituted fluoroalkenes
作者:Chun-Ru Cao、Song Ou、Min Jiang、Jin-Tao Liu
DOI:10.1039/c3ob42093k
日期:——
A series of tetrasubstituted fluoroalkene derivatives were synthesized by the reaction of α-fluoro-β-carbonyl benzothiazol-2-yl sulfones with various nucleophiles in good yields with high stereoselectivities. The predominant cis configuration of fluorine and alkynyl groups was observed. A single isomer was obtained when a ketone, acetate or amide was used as the substrate in the presence of a base
Novel Bisaryl Substituted Thiazoles and Oxazoles as Highly Potent and Selective Peroxisome Proliferator-Activated Receptor δ Agonists
作者:Robert Epple、Christopher Cow、Yongping Xie、Mihai Azimioara、Ross Russo、Xing Wang、John Wityak、Donald S. Karanewsky、Tove Tuntland、Vân T. B. Nguyêñ-Trân、Cara Cuc Ngo、David Huang、Enrique Saez、Tracy Spalding、Andrea Gerken、Maya Iskandar、H. Martin Seidel、Shin-Shay Tian
DOI:10.1021/jm9007399
日期:2010.1.14
The discovery, synthesis, and optimization of compound 1 from a high-throughput screening hit to highly potent and selective peroxisome proliferator-activated receptor δ (PPARδ) agonists are reported. The synthesis and structure−activity relationship in this series are described in detail. On the basis of a general schematic PPAR pharmacophore model, scaffold 1 was divided into headgroup, linker, and
Studien zum Reaktionsmechanismus der Hydantoin-Synthese nachBiltz, 1. Mitt.: Nachweis der Zwischenstufen der Hydantoin-Synthese nachBiltz
作者:Gerhard Schwenker、Hong Guo、Sonja Bernhart
DOI:10.1002/ardp.19923251207
日期:——
Der von Butler und Leitch vorgeschlagene Reaktionsmechanismus für die bei der Hydantoinsynthese von Biltz ablaufende Skelett‐Umlagerung konnte gesichert werden. Die bereits von Biltz postulierte Zwischenstufe 3a wurde aus dem Reaktionsansatz isoliert und die Zwischenstufen 3b‐3g und 4b‐4g auf unabhängigem Wege synthetisiert und in den Reaktionsansätzen der jeweiligen Benzile 1b‐1d mit Phenylharnstoff
Antiinflammatory activity of 5,6-diaryl-2,3-dihydroimidazo[2,1-b]thiazoles. Isomeric 4-pyridyl and 4-substituted-phenyl derivatives
作者:I. Lantos、P. E. Bender、K. A. Razgaitis、B. M. Sutton、M. J. DiMartino、D. E. Griswold、D. T. Walz
DOI:10.1021/jm00367a014
日期:1984.1
Isomeric 5(6)-(4-pyridyl)- and 6(5)-(4-substituted-phenyl)-2,3-dihydroimidazo[2,1-b]thiazoles were prepared by a mixed benzoin-imidazothione route, and their structures were assigned by spectral comparison to compounds of established substitution pattern. The structural assignment was confirmed by X-ray analysis. Examination of the compounds for antiinflammatoryactivity by an adjuvant arthritic rat
A novel compound of the formula: A--Z--Ar.sup.1 1'CO--Ar.sup.2 wherein A is a condensed pyrimidinone or condensed pyridazinone ring; Ar.sup.1 and Ar.sup.2 are independently a ring; Z is a divalent group, or a salt thereof which have an excellent antitumor activity.