英文别名ethyl (3R,5R)-7-[(1S,2S,6R,8S,8aR)-8-(2,2-dimethylbutanoyloxy)-2,6-dimethyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl]-3,5-dihydroxyheptanoate; Simvastatin EP Impurity M; (βR,δR,1S,2S,6R,8S,8aR)-8-(2,2-DiMethyl-1-oxobutoxy)-1,2,6,7,8,8a-hexahydro-β,δ-dihydroxy-2,6-diMethyl-1-naphthaleneheptanoic Acid Ethyl Ester; SiMvastatin Hydroxy Ethyl Ester; Simvastatin Impurity M; 1-Naphthaleneheptanoic acid, 8-(2,2-dimethyl-1-oxobutoxy)-1,2,6,7,8,8a-hexahydro-β,δ-dihydroxy-2,6-dimethyl-, ethyl ester, (βR,δR,1S,2S,6R,8S,8aR)-; (3R,5R)-ethyl 7-((1S,2S,6R,8S,8aR)-8-((2,2-dimethylbutanoyl)oxy)-2,6-dimethyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl)-3,5-dihydroxyheptanoate; Simvastatin Impurity 49 
