Camptothecin derivatives and process for their preparation

Details Camptothecin derivatives and process for their preparation Camptothecin derivatives and process for their preparation

1995-02-15

1997-02-11

Daus, Donald G.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

5142332, 514253, 514283, 544125, 544361, 546 41, 546 48, A61K 3147, C07D49122

Patent

active

056021410

ABSTRACT:
The present invention relates to new camptothecin derivatives of the formula (I) ##STR1## wherein B is a group B' or B" ##STR2## wherein each of (x) and (y) is a single or double bond. The present invention also provides processes for their preparation as well as pharmaceutical compositions containing the same.

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