[Research on substances with antiblastic activity. LXI. Synthesis of 6-amino- and 7-amino-9-keto-9H-pyrrolo[1,2-a]indole derivatives].

Intramolecular cyclization of 1-(2-carboxy-4-nitrophenyl)pyrrole afforded 7-nitro-9-oxo-9H-pyrrolo[1,2-a]indole, which was then reduced to 7-amino-9-oxo-9H-pyrrolo[1,2-a]indole. The same procedure was adopted for the synthesis of 6-amino-9-oxo-9H-pyrrolo[1,2-a]indole starting from 1-(2-carboxy-5-nitrophenyl)pyrrole. The preparation of some N-acylderivatives of the above cited aminoketones is reported. These compounds shall be subjected to biological screening against Leukemia L 1210 as a simple analogues of Mitomycin C.