(2S,5R,6R)-6-[[2-(3,4-dichlorophenyl)-2-methoxyacetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid | (2S,5R,6R)-6-[[2-(3,4-dichlorophenyl)-2-methoxy-acetyl]amino]-7-keto-3,3-dimethyl-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid |
(2S,5R,6R)-6-[[2-(3,4-dichlorophenyl)-2-methoxy-ethanoyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid |