Pyrrolo acridines, synthesis

Gellerman et al. (94T12959) have described the biomime tic synthesis of a pyrrolo[2,3,4-k/]acridine 305 (Scheme 57). 

Gellerman, G., Rudi, A. and Kashman, Y. 1994. The biomimetic synthesis of marine alkaloid related pyrido- and pyrrolo[2,3,4-Al]acridines. Tetrahedron 50(45) 12959-12972. 

Radchenko, O.S., Balaneva, N.N., Denisenko, V.A., and Novikov, V.L. (2006) A simple and effective approach to the synthesis of pyrido [4,3,2-mn]pyrrolo[3,2,l-de]acridine skeleton of amoamines A and B, pentacyclic marine alkaloids from the asddian Cystodytes sp.. Tetrahedron Lett., 47, 7819-7822. 

A domino approach for the synthesis of pyrrolo[2,3,4-W]acridin-l-ones via a C-N bond cleavage reaction has been reported (Scheme 187). " ... 

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