Oxidative Dehydrogenation of Dihydropyrimidinones and Dihydropyrimidines
摘要:
A mild, practical procedure for oxidative dehydrogenation with catalytic amounts of a Cu salt, K2CO3, and tert-butylhydroperoxide (TBHP) as a terminal oxidant has been developed. This oxidation procedure is generally applicable to dihydropyrimidinones and most dihydropyrimidines.
Oxidative Dehydrogenation of Dihydropyrimidinones and Dihydropyrimidines
摘要:
A mild, practical procedure for oxidative dehydrogenation with catalytic amounts of a Cu salt, K2CO3, and tert-butylhydroperoxide (TBHP) as a terminal oxidant has been developed. This oxidation procedure is generally applicable to dihydropyrimidinones and most dihydropyrimidines.
The present invention relates to an improved process for preparing Rosuvastatin calcium of Formula I.
本发明涉及一种改进的制备化学式I的罗伴他汀钙的方法。
Process for preparing pyrimidine propenaldehyde
申请人:Mallela Sambhu Prasad Sarma
公开号:US20110178296A1
公开(公告)日:2011-07-21
The present invention relates to an improved process for preparing (2E)-3-[4-(4-fluorophenyl)-6-isopropyl-2-(N-methyl-N-methylsulfonylamino)pyrimidin-5-yl]-propenal of formula (I), which is an useful intermediate in the preparation of Rosuvastatin.
PROCESS FOR PREPARATION OF ROSUVASTATIN CALCIUM FIELD OF THE INVENTION
申请人:Dandala Ramesh
公开号:US20090312547A1
公开(公告)日:2009-12-17
The present invention relates to an improved process for preparing (E)-7-[4-(4-fluorophenyl)-6-isopropyl-2-[methyl(methylsulfonyl)amino]pyrimidin-5-yl](3R,5S)-3,5-dihydroxyhept-6-enoic acid calcium of Formula (I).