Acetic acid (2R,3R,4S,5R,6R)-4,5-diacetoxy-6-acetoxymethyl-2-(2-methoxy-1-methyl-6-oxo-1,6-dihydro-purin-9-yl)-tetrahydro-pyran-3-yl ester 在
sodium methylate 作用下,
反应 0.33h,
以70%的产率得到2-Methoxy-1-methyl-9-((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yl)-1,9-dihydro-purin-6-one