Synthesis of a series of 2-(aminomethyl)-9-(2-phosphonomethoxyalkyl)adenines VI and hypoxanthines VII is reported. The protected 2-(aminomethyl)adenine I was selectively alkylated with [bis(2-propoxy)phosphonylmethoxy]alkyl chlorides or tosylates II and the obtained 9-[bis(2-propoxy)phosphonylmethoxy]alkyl-2-(benzyloxycarbonyla minomethyl)adenines IV were oxodeaminated to give the corresponding hypoxanthine derivatives V. The intermediates IV and V were completely deprotected by treatment with iodotrimethylsilane under formation of the title compounds VI and VII.
报道了一系列2-(氨甲基)-9-(2-膦甲氧基烷基)腺嘌呤VI和次黄嘌呤VII的合成。保护的2-(氨甲基)腺嘌呤I被选择性地烷基化为[bis(2-丙氧基)膦酸甲氧基]烷基氯化物或tosylates II,得到的9-[bis(2-丙氧基)膦酸甲氧基]烷基-2-(苄氧羰基氨甲基)腺嘌呤IV被氧化脱胺,形成相应的次黄嘌呤衍生物V。中间体IV和V通过碘三甲基硅烷处理完全去保护,形成标题化合物VI和VII。