Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2008-03-18
2008-03-18
Shameem, Golam M. M. (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C549S200000, C549S429000, C549S456000
Reexamination Certificate
active
07345181
ABSTRACT:
The present invention provides a process for preparing benzoprostacycline derivatives of formula (1), i.e. 5,6,7-trinor-4,8-inter-m-phenylene PGI2 derivatives, and vinyl tin compounds of formula (III) as starting materials for the same.
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H. Wakita et al., “Heterocycles”, vol. 48, No. 2, pp. 2559-2571 (1998).
Kim Yong-Hyun
Lee Yiu-Suk
Corless Peter F.
Edwards Angell Palmer & & Dodge LLP
O'Day Christine C.
Shameem Golam M. M.
Yonsung Fine Chemical Co., Ltd.
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