Isoxazoline and isoxazole fibrinogen receptor antagonists
申请人:The DuPont Merck Pharmaceutical Company
公开号:US05849736A1
公开(公告)日:1998-12-15
This invention relates to novel isoxazolines and isoxazoles which are useful as antagonists of the platelet glycoprotein IIb/IIIa fibrinogen receptor complex or the vitronectin receptor, to pharmaceutical compositions containing such compounds, processes for preparing such compounds, and to methods of using these compounds, alone or in combination with other therapeutic agents, for the inhibition of platelet aggregation, as thrombolytics, and/or for the treatment of thromboembolic disorders.
X=Y–ZH systems as potential 1,3-dipoles. Part 56: Cascade 1,3-azaprotio cyclotransfer–cycloaddition reactions between aldoximes and divinyl ketone: the effect of oxime E/Z isomerism on cycloaddition stereoselectivity
作者:Mark Blackwell、Peter J Dunn、Alison B Graham、Ronald Grigg、Paul Higginson、Imaad S Saba、Mark Thornton-Pett
DOI:10.1016/s0040-4020(02)00835-9
日期:2002.9
between aldoximes and divinyl ketone affords mixtures of exo and endo-isomers of substituted 1-aza-7-oxabicyclo[3.2.1]octan-4-ones, the ratio of which is dependent on the E/Z geometry of the starting oxime and its ability to isomerise under the thermal reaction conditions.
6-O-substituted erythromycin derivatives having improved gastrointestinal tolerance
申请人:Ma Zhenkun
公开号:US20060166906A1
公开(公告)日:2006-07-27
Compounds having formula (I)
are useful for treating bacterial infections while avoiding the concomitant liability of gastrointestinal intolerance. Compositions containing the compounds and methods of treatment using the compounds are also disclosed.
Abstract Stereoselective aldoximes, preferably Z form have been obtained from α-cyano substituted carbonyl conjugated alkenes. This reaction occurs through Michael addition type reaction followed by retro-Knoevenagel reaction without transition-metal catalysis via C–C bond cleavage. These oximes are evaluated against cancer cell lines employing mechanistic study. Two oximes showed significant cytotoxic
This invention relates to improved isoxazoline compounds including, but not limited to N.sup.2 -(3,5-dimethylisoxazole-4-sulfonyl)-N.sup.3 -\x9b3-(4-amidinophenyl)isoxazolin-5(R)-ylacetyl!-(S)-2,3-diaminopropionic acid, which are useful as antagonists of the platelet glycoprotein IIb/IIIa fibrinogen receptor complex, to pharmaceutical compositions containing such compounds, and to methods of using these compounds, alone or in combination with other therapeutic agents, for the inhibition of platelet aggregation, as thrombolytics, and/or for the treatment of thromboembolic disorders.