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US 5,187,186 AGranted
Pyrroloindole derivatives
AssigneeKyowa Hakko Kogyo Co., Ltd.
InventorsYutaka Kanda, Youichi Uosaki, Hiromitsu Saito, Hiroshi Sano, Eiji Kobayashi, Makoto Morimoto, Satoru Nagamura
Life of this patent
Estimating the term…
Abstract
DC-88A derivatives represented by the general formula: ##STR1## wherein X represents hydrogen or CO.sub.2 R.sup.1 (in which R.sup.1 represents hydrogen, a straight-chain or branched alkyl having 1 to 4 carbon atoms, allyl, or benzyl); and ##STR2## have an excellent anti-tumor activity and are useful as anti-tumor agents.
Claims5
A compound represented by the formula:
- ##STR38## wherein X represents hydrogen or CO.sub.2 R.sup.1 (in which R.sup.1 represents hydrogen, a straight-chain or branched alkyl having 1 to 4 carbon atoms, allyl, or benzyl);
- and ##STR39##
Dependencies are inferred from the claim text.