7-(Diphenylmethyl)oxy-9a-methoxymitosane is a novel intermediate for conversion into 7-amino and 7-oxy-9a-methoxymitosanes and is also useful for inhibiting mammalian tumor growth. The compound is prepared by reacting 7-hydroxy-9a-methoxymitosane with diazodiphenylmethane. In a preferred reaction, the compound is prepared from mitomycin C via 7-hydroxy-9a-methoxymitosane without drying (water removal). The intermediate is advantageously converted to the very effective anti-tumor agent 7-[2-(4-nitrophenyldithio)ethylamino]-9a-methoxymitosane in unexpectedly high yields using a two step process where the first step constitutes conversion to 7-[2-(2-pyridyldithio) ethylamino]-9a-methoxymitosane or 7-[2-(3-nitro-2-pyridyldithio)ethylamino]-9a-methoxymitosane.
7-(Diphenylmethyl)oxy-9a-methoxymitosane 是一种新型中间体,可转化为 7-
氨基和 7-oxy-9a-methoxymitosanes,还可用于抑制哺乳动物肿瘤的生长。该化合物是通过 7-羟基-9a-甲氧基米托索烷与重氮二苯
甲烷反应制备的。在一种优选反应中,该化合物是由
丝裂霉素 C 通过 7-羟基-9a-甲氧基
甲胺基
乙烷制备而成,无需干燥(脱
水)。采用两步法将中间体转化为非常有效的
抗肿瘤药物 7-[2-(4-
硝基苯基二
硫代)乙基
氨基]-9a-甲氧基甲氧
磷烷,收率出乎意料地高,其中第一步是转化为 7-[2-(2-
吡啶基二
硫代)乙基
氨基]-9a-甲氧基甲氧
磷烷或 7-[2-(
3-硝基-2-
吡啶基二
硫代)乙基
氨基]-9a-甲氧基甲氧
磷烷。