(S)-tert-butyl 3-((9-(3-(3-fluorophenyl)benzyl)-8-oxo-8,9-dihydro-7H-purin-2-ylamino)methyl)pyrrolidine-1-carboxylate 在
N-Boc 、
三氟乙酸 作用下,
以
mixture 、 trifluoracetic acid-dichloromethane 为溶剂,
反应 1.5h,
以to give (R)-9-(3-(3-Fluorophenyl)benzyl)-2-(pyrrolidin-3-ylmethylamino)-7H-purin-8(9H)-one [26 mg, quantitative; 30] as a pale yellow foam in the TFA salt form的产率得到(R)-9-(3-(3-Fluorophenyl)benzyl)-2-(pyrrolidin-3-ylmethylamino)-7H-purin-8(9H)-one