The invention provides a synthetic method of (purin-6-yl)amino acids which are useful as medicaments of anticancer, anti-virus agents and so on or their intermediates. Methyl (R,S)-3-[4-(9-benzylpurin-6-yl) phenyl]-2-[(t-butoxycarbonyl) amino]propanoate is produced by making 9-benzyl-6-iodopurine react with methyl (R,S)-2-[(t-butoxycarbonyl)amino]-3-[4-(trimethyl-stananyl) phenyl]propionate in the presence of Pd
2
dba
3
, triphenylarsine and copper iodide.
本发明提供了一种合成(
嘌呤-6-基)
氨基酸的方法,它们可用作抗癌、抗病毒药物等药物或它们的中间体。通过使
9-苄基-6-碘嘌呤在Pd2dba3、三苯基胂和
碘化
铜的存在下与甲基(R,S)-2-[(t-丁氧羰基)
氨基]-3-[4-(三甲基基
锡基)苯基]
丙酸酯反应,可制得甲基(R,S)-3-[4-(9-苄基
嘌呤-6-基)苯基]-2-[(t-丁氧羰基)
氨基]
丙酸酯。