Liu Peijie
2010
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Journal
Chinese Journal of Pharmaceuticals
Abstract
To perform the quality control of clopidogrel hydrogen sulfate,three related substances——(+)-(S)-α-(2-chlorophenyl)-6,7-dihydrothieno[3,2-c]pyridin-5(4H)-acetic acid hydrochloride(A),methyl α-(2-chlorophenyl)-4,5-dihydrothieno[2,3-c]pyridin-6(7H)-acetate hydrochloride(B) and(-)-(R)-methyl α-(2-chlorophenyl)-6,7-dihydrothieno[3,2-c]pyridin-5(4H)-acetate hydrogen sulfate(C) recorded in USP31 were prepared,and their structures were confi rmed by IR,1H NMR and MS.