N-7-(2-(Nitrophenyldithio)ethyl)mitomycin C

[1aS-(1aalpha,8beta,8aalpha,8balpha)]-8-(Carbamoyloxymethyl)-8a-methoxy-5-methyl-6-[2-(4-nitrophenyldisulfanyl)ethylamino]-1,1a,2,4,7,8,8a,8b-octahydroazirino[2',3':3,4]pyrrolo[1,2-a]indole-4,7-dione