Potent activators of protein kinase C in fibroblasts: This property was determined for several indolactam V analogues (1) with a new cell-based assay system. This tumor-promoting indole alkaloid and analogues thereof can be synthesized efficiently on the solid phase. The key steps of the combinatorial approach are a regioselective amination of the indole ring and an enantioselective enzymatic reaction.
ENDO, YASUYUKI;HASEGAWA, MASASHI;ITAI, AKIKO;SHUDO, KOICHI, TETRAHEDRON, 43,(1987) N 16, 3695-3704