(7S)-2-[(carboxycarbonyl)amino]-7-{[(1,1-dioxido-1,2-benzothiazol-3-yl)oxy]methyl}-4,7-dihydro-5H-thieno[2,3-c]pyran-3-carboxylic acid
(7s)-2-[(carboxycarbonyl)amino]-7-{[(1,1-dioxido-1,2-benzothiazol-3-yl)oxy]methyl}-4,7-dihydro-5h-thieno[2,3-c]pyran-3-carboxylic acid