Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2006-10-24
2006-10-24
Shameem, Golam M. M. (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C548S950000, C548S952000
Reexamination Certificate
active
07126003
ABSTRACT:
A process for producing a compound represented by the following formula (II) which comprises treating a compound represented by the following formula (I) (wherein R1, R2and R3represent each a specific substituent) with an enzyme capable of asymmetrically hydrolyzing an ester and the novel compound (II). The process of the present invention makes it possible to easily obtain an optically active 2-azetidinone derivative in a large amount at a low cost
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Supplementary European Search Report dated Jan. 21, 2005.
Ichikawa Shigeru
Imura Akihiro
Kitagawa Yutaka
Sato Kouji
Yagi Tsutomu
Daiichi Pharmaceutical Co. Ltd.
Shameem Golam M. M.
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