英文别名Dimethyl [2-(2-amino-6-chloro-9H-purin-9-yl)ethyl]malonate; Dimethyl 2-[2-(2-amino-6-chloropurin-9-yl)ethyl]malonate; Valacyclovir Impurity 20; dimethyl 2-[2-(2-amino-6-chloropurin-9-yl)ethyl]propanedioate; DIMETHYL-2-[(2-AMINO-6-CHLOROPURINE-9-YL)ETHYL]MALONATE; Famciclovir Impurity 40; Dimethyl 2-(2-(2-amino-6-chloro-9H-purin-9-yl)ethyl)malonate 
