辛伐他汀杂质B

bis-simvastatin

N-butyl-7-[1,2,6,7,8,8a(R)-hexahydro-2(S),6(R)-dimethyl-8(S)-[[2,2-dimethylbutanoyl]oxy]-1(S)-naphthyl]-3(R),5(R)-dihydroxyheptanoic acid amide

辛伐他汀

甲基碘