Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2006-09-28
2010-11-30
Saeed, Kamal A (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
active
07842818
ABSTRACT:
The present invention provides a method for effectively producing an optically active form of tetrasubstituted-5-azaspiro[2.4]heptane derivative, which serves as a useful production intermediate for quinolonecarboxylic acid antibacterial agents, and intermediates for the derivative. The present invention is directed to a method for producing a compound (VII) according to the following scheme.
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Kanai Kazuo
Komoriya Satoshi
Kuroyanagi Junichi
Miyauchi Rie
Takahashi Hisashi
Daiichi Sankyo Company, Limited
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Rodriguez-Garcia Valerie
Saeed Kamal A
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