Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Reexamination Certificate
2006-09-08
2008-05-27
Davis, Brian (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
C564S394000
Reexamination Certificate
active
07378555
ABSTRACT:
The present invention is to prepare efficiently 2′-amino-5′-hydroxypropiophenone corresponding to the AB-ring part of camptothecin (CPT) skeleton and a tricyclic ketone corresponding to the CDE-ring part in order to provide efficiently CPT by the total synthesis, which is a starting material for irinotecan hydrochloride and various kinds of camptothecin derivatives, and to provide stably CPT and its derivatives.
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Nishiyama Hiroyuki
Ogawa Takanori
Sawada Seigo
Uchida Miyuki
Davis Brian
Kabushiki Kaisha Yakul't Honsha
Wolf Greenfield & Sacks P.C.
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