上游原料
2-[[2-(acetamido)-6-oxo-1,6-dihydro-9H-purin-9-yl]methoxy]ethyl acetate; Acetic acid 2-(2-acetamido-6-oxo-1,6-dihydro-purin-9-ylmethoxy)-ethyl ester2-[[2-(acetamido)-6-chloro-9H-purin-9-yl]methoxy]ethyl acetate2-[[2-(acetamido)-9H-purin-9-yl]methoxy]ethyl acetate2-[(2-amino-6-oxo-1,6-dihydro-9H-purin-9-yl)methoxy]ethyl acetate2-[(2-amino-6-chloro-9H-purin-9-yl)methoxy]ethyl acetate2-[(2-amino-9H-purin-9-yl)methoxy]ethyl acetate6-Chloro-9H-purin-2-amine; 6-Chloro-9H-purin-2-ylamine; 2-Amino-6-chloropurine1-[[2-(chloromethoxy)ethoxy]methyl]benzene9-[[2-(benzyloxy)ethoxy]methyl]-6-chloro-9H-purin-2-ylamine