Intermediates prepared in an asymmetric total synthesis of campt

Details Intermediates prepared in an asymmetric total synthesis of campt Intermediates prepared in an asymmetric total synthesis of campt

1994-12-23

1996-07-30

Dentz, Bernard

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D491052

Patent

active

055413293

ABSTRACT:
The present invention provides a process for the asymmetric synthesis of camptothecin analogues as well as novel chemical intermediates of Formula I, II, and III. In general, the present process comprises conversion of a cis dioxolanone, having the same desired absolute configuration as the desired camptothecin analogue, to a compound of Formula I, II, or III, which compound is then converted to the desired camptothecin analogue. ##STR1##

REFERENCES:
patent: 5162532 (1992-11-01), Comins et al.
patent: 5258516 (1993-11-01), Comins et al.

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