、 alkaline earth salt of/the/ methylsulfuric acid 在
polystyrene-bound 2-tert-butylimino-2-diethylamino-1,3-dimethyl-perhydro-1,3,2-diazaphosphorine 作用下,
以
乙腈 为溶剂,
生成 2-(cyclopropylamino)-7-(2-methoxybenzyl)-9-(3-(trifluoromethoxy)phenyl)-7H-purin-8(9H)-one