Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...
Patent
1993-12-06
1996-07-23
Shah, Mukund J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Nitrogen attached directly or indirectly to the purine ring...
C07D48702
Patent
active
055391133
ABSTRACT:
A process of making a compound of the formula ##STR1## wherein the ring A is a pyrrole or pyrroline ring, X is an amino group or a hydroxyl group, Y is a hydrogen atom, an amino group or a hydroxyl group, R is a hydrogen atom, a fluorine atom, an alkyl group, an alkenyl group or an alkynyl group, --COOR.sup.1 and --COOR.sup.2 are independently carboxyl groups which may be esterified and n is an integer of 2 to 4, and R may be different in each of the n repeating units, and salts thereof have excellent antitumor effects, and can be used as antitumor agents in mammals.
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Akimoto Hiroshi
Hitaka Takenori
Miwa Tetsuo
Grumbling Matthew V.
Shah Mukund J.
Takeda Chemical Industries Ltd.
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