Nsc 208423

brevianamide A

Spiro(5H,6H-5A,9A-(iminomethano)-1H-cyclopent(F)indolizine-7(8H),2'-(2H)indole)-3',5,10(1'H)-trione, 2,3,8A,9-tetrahydro-8,8-dimethyl- (van) (9ci)