Method for preparing rosuvastatin calcium intermediate

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United States of America Patent

PATENT NO 8703944
APP PUB NO 20130143908A1
SERIAL NO

13757846

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Abstract

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A method for preparing a rosuvastatin calcium intermediate represented by formula I. The method includes: hydrolyzing an ester compound represented by formula II (in which, R represents C1-C5) in the presence of a metal compound to obtain a carboxylic acid compound represented by formula III; and reducing the carboxylic acid compound in the presence of a reductant.

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Patent Owner(s)

Patent OwnerAddress
PORTON FINE CHEMICALS LTD401221 FINE CHEMICAL INDUSTRY ZONE 1 CHANGSHOU CHEMICAL INDUSTRY PARK CHONGQING CHONGQING CITY CHONGQING CITY 401221

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lin, Wenqing Chongqing, CN 4 2
Yang, Peng Chongqing, CN 169 590
Zheng, Hongjie Chongqing, CN 7 2

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