C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 491/147 (2006.01) C07D 491/22 (2006.01)
Patent
CA 2683768
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.
Nishiyama Hiroyuki
Ogawa Takanori
Sawada Seigo
Uchida Miyuki
Kabushiki Kaisha Yakult Honsha
Mbm Intellectual Property Law Llp
LandOfFree
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