三氟甲磺酸酐 、
6-甲氧基嘌呤 在
lithium hydride 作用下,
生成 (3aR,4R,6R,6aS)-ethyl 4,5,6,6a-tetrahydro-6-(6-methoxy-7H-purin-7-yl)-2,2-dimethyl-3aH-cyclopenta-1,3-dioxole-4-acetate 、
(3aR,4R,6R,6aS)-ethyl 4,5,6,6a-tetrahydro-6-(6-methoxy-9H-purin-9-yl)-2,2-dimethyl-3aH-cyclopenta-1,3-dioxole-4-acetate