ethyl 4-(4-methoxyphenethylamino)-1-(2-chloro-2-phenylethyl)-1H-pyrazolo[3,4-b]pyridine-5-carboxylate 在
Chiralpak AS 作用下,
以
正己烷 、
异丙醇 为溶剂,
生成
ethyl 1-[(2R)-2-chloro-2-phenylethyl]-4-[2-(4-methoxyphenyl)ethylamino]pyrazolo[3,4-b]pyridine-5-carboxylate