Condensed-hexacyclic compounds and a process therefor

Details Condensed-hexacyclic compounds and a process therefor Condensed-hexacyclic compounds and a process therefor

1995-07-13

2003-01-07

Kifle, Bruck (Department: 1624)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

06504029

ABSTRACT:

DISCLOSURE OF THE INVENTION
The present invention therefore provides the methanesulfonate of a camptothecin derivative, said methanesulfonate being represented by the following formula (1):
or a hydrate thereof, and also a preparation process therefor.
The present invention also provides a pharmaceutical composition comprising the Compound (1) or a pharmaceutically-acceptable salt thereof.


REFERENCES:
patent: 4939255 (1990-07-01), Tagawa et al.
patent: 5061795 (1991-10-01), Tagawa et al.
patent: 6-87746 (1994-03-01), None
Mitsui et al 84thAnnual Meeting of the American Association for Cancer Research Poster No. 2510 Figures 1-3 (1993).

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