摘要:
A process and intermediates in preparation of 6-exomethylene derivatives of lovastatin and 8-acyl and di- and tetrahydro analogs thereof is disclosed.
摘要:
A novel hydrogenation process, using a homogenous iridium or rhodium catalyst for the reduction of both double bonds of des-(.alpha.-methylbutyryl)-C-8-hydroxy lovastatin and C-8-amino, C-8-alkoxy and C-6-substituted analogs, is disclosed.
摘要:
The present invention relates to a stereo-selective synthesis of leukotriene antagonists. More particularly, this invention relates to the stereo-selective synthesis of (.beta.S,.gamma.R) and (.beta.R,.gamma.S)-4-((3-(4-acetyl-3-hydroxy-2-propyl(phenoxy)propyl)-thio-.gamma.-hydroxy-.beta.-methylbenzenebutanoic acid, and related compounds. These compounds are useful therapeutic agents for treating allergic conditions, asthma, cardiovascular, disorders, inflammation and pain in mammals, especially humans. The compounds are also useful for inducing cytoprotection in mammals, especially humans.
摘要:
This invention relates to a novel process for the preparation of 3-hydroxy-3-methylglutarylcoenzyme A (HMG-CoA) reductase inhibitors which contain a 4-hydroxy-3,4,5,6-tetrahydro-2H-pyran-2-one moiety, such as compactin and mevinolin, by utilizing an alkyl 4-cyano-3(R)-hydroxybutanoate as a chiral synthon for the stereospecific introduction of the 4-hydroxy-3,4,5,6-tetrahydro-2H-pyran-2-one moiety.
摘要:
This invention relates to a novel process for the preparation of 3-hydroxy-3-methylglutarylcoenzyme A (HMG-CoA) reductase inhibitors which contain a 4-hydroxy-3,4,5,6-tetrahydro-2H-pyran-2-one moiety, such as compactin and mevinolin, by utilizing an alkyl 4-halo-3(S)-hydroxybutanoate as a chiral synthon for the stereospecific introduction of the 4-hydroxy-3,4,5,6-tetrahydro-2H-pyran-2-one moiety.