quinacillin

3-Carboxy-2-quinoxalinylpenicillanic acid

6α-[[3-(Sodiooxycarbonyl)quinoxalin-2-yl]carbonylamino]penicillanic acid sodium salt

(2S,5R,6R)-6-[(3-carboxyquinoxaline-2-carbonyl)amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

(2S,5R,6R)-6-[(3-carboxyquinoxaline-2-carbonyl)amino]-7-keto-3,3-dimethyl-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

(2S,5R,6R)-6-[(3-carboxyquinoxalin-2-yl)carbonylamino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid