(2013/09/26)
(2-chlorophenyl)-(3-oxo-3,6-dihydro-2H-pyridin-1-yl)acetic acid methyl ester
(2-chlorophenyl)-(3-mercapto-5-oxopiperidin-1-yl)acetic acid methyl ester
3-tert-butoxycarbonylmethylene-5-(mercaptopiperidin-1-yl)-(2-chlorophenyl)acetic acid methyl ester
(3-carboxymethylene-5-mercaptopiperidin-1-yl)-(2-chlorophenyl)acetic acid methyl ester hydrochloride