Calcium channel blocking and positive inotropic activities of ethyl 5-cyano-1,4-dihydro-6-methyl-2-[(phenylsulfonyl)methyl]-4-aryl-3-pyridinecarboxylate and analogs. Synthesis and structure-activity relationships
作者:Ila Sircar、Eva K. Gregor、K. R. Anderson、Stehen J. Haleen、Yu Hsin Shih、Ronald E. Weishaar、Robert P. Steffen、Thomas A. Pugsley、M. D. Taylor
DOI:10.1021/jm00111a047
日期:1991.7
The synthesis and pharmacological evaluation of a series of 2-[(arylsulfonyl)methyl]-4-aryl-5-cyano-1,4-dihydropyridine-3-carboxylic acid esters and analogues are described. These compounds possess a unique profile namely, calcium channel blocking and positive inotropic activities in vitro. Compound 54 was selected as the best compound in the series and was studied in detail. The synthesis and biological
[EN] COMPOUNDS AS RAS INHIBITORS AND USE THEREOF<br/>[FR] COMPOSÉS UTILISÉS COMME INHIBITEURS DE RAS ET LEUR UTILISATION
申请人:DE SHAW RES LLC
公开号:WO2019055540A1
公开(公告)日:2019-03-21
A compound of Formula (Ia) or (Ib), or a pharmaceutically acceptable salt thereof is described, wherein the substituents are as defined herein. Pharmaceutical compositions comprising the same and method of using the same are also described.
A facile access to 2,3,6-trisubstituted2H-pyran-5-carboxylates is developed by employing 2-alkyl-2-enals as reactants with acetoacetates. The reaction involves Knoevenagel condensation followed by a 6π-electrocyclization, in which the presence of the C2 alkyl substituent in the enals favors the formation of (E)-Knoevenagel adducts for the ensuing electrocyclization. The resulting 2H-pyrans are hydrogenated
Biotransformation in organic synthesis: applications of yeast reduction in the synthesis of 3,5-dihydroxy esters of high optical purity
作者:Markus Christen、David H. G. Crout
DOI:10.1039/c39880000264
日期:——
All four stereoisomers of methyl 6-(p-chlorophenylthio)-3,5-dihydroxyhexanoate have been synthesised by a route in which the key introduction of chirality was effected by an appropriate yeastreduction.
efficient sequential double-annulation strategy has been developed to afford a series of unsymmetrical acridines with high yield and regioselectivity for the first time. This simple protocol enables the sequential assembly of two aromatic rings from simple starting materials. The reaction proceeds via modified Friedländer annulation and subsequent base-mediated benzannulation with acrylates as Michael acceptors