Synthesis and Antitumor Activity of a New Class of Pyrazolo[4,3-e]pyrrolo[1,2-a][1,4]diazepinone Analogs of Pyrrolo[1,4][2,1-c]benzodiazepines
- 1 December 1994
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of Medicinal Chemistry
- Vol. 37 (25) , 4329-4337
- https://doi.org/10.1021/jm00051a009
Abstract
A new class of pyrrolo[1,4]benzodiazepine (PBD) analogues featuring a pyrazolo[4,3-e]pyrrolo[1,2-a][1,4]diazepinone ring system has been designed and synthesized. These compounds, 2a-o, are characterized by the substitution of the aromatic A ring, characteristic of the PBDs, with a disubstituted pyrazole ring bearing alkyl and benzyl substituents at N6 or N7 and alkyl or carbomethoxy substituents at C8. Biological evaluation revealed an appreciable in vitro cytotoxic activity for compounds 2a,b,f-i.Keywords
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