The present invention can provide a solvate, a cubic crystal and a columnar crystal of 2-amino-6-benzyloxypurine by crystallization from (1) a solvent containing at least one kind of solvent selected from the group consisting of alcohol and water, (2) alcohol or (3) a water-containing solvent.
本发明可以通过从以下三种溶剂中结晶得到2-
氨基-
6-苄氧基嘌呤的溶剂化物、立方晶体和柱状晶体:(1)含有至少一种从醇和
水组成的组中选择的溶剂的溶剂;(2)醇;或(3)含
水的溶剂。