{N-acetyl S-[N6-(benzyloxycarbonyl)-9-(ω-carbonylmethyl)adenine-8-methyl]-L-cysteine methyl ester}-S-{N6-(benzyloxycarbonyl)-9-[(tert-butoxy)carbonylmethyl]adenine-8-methyl}-L-cysteine 在
三乙基硅烷 、
三氟乙酸 作用下,
以
二氯甲烷 为溶剂,
以98%的产率得到{N-acetyl S-[N6-(benzyloxycarbonyl)-9-(ω-carbonylmethyl)adenine-8-methyl]-L-cysteine methyl ester}-S-{N6-(benzyloxycarbonyl)-9-(carboxymethyl)adenine-8-methyl}-L-cysteine