Tokyo Research Laboratories, Kyowa Hakko Kogyo Co., Ltd., 3-6-6 Asahimachi, Machida, Tokyo 194, Japan Received May 2, 1989 9-epi-Mitomycin B (2b) with the Pame C-9 stereochemistry as mitomycin C (1) was synthesized from mitomycin B (2a) through inversion at the C-9 position. 10-0-Decarbamoylmitomycin D (sa), derived from 2a in two steps, was employed as the substrate for the epimerization. The 10-hydroxymethyl group ...
![8a-hydroxy-8-hydroxymethyl-6-methoxy-1,5-dimethyl-1,1a,2,8,8a,8b-hexahydro-azirino[2',3':3,4]pyrrolo[1,2-a]indole-4,7-dione Structure](https://image.chemsrc.com/caspic/190/26909-46-6.png)