Synonyms: 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylicacid, 6-[2-(furfurylideneamino)-2-phenylacetamido]-3,3-dimethyl-7-oxo- (8CI);4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid,6-[[[(2-furanylmethylene)amino]phenylacetyl]amino]-3,3-dimethyl-7-oxo-,(2S,5R,6R)- (9CI); 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid,6-[[[(2-furanylmethylene)amino]phenylacetyl]amino]-3,3-dimethyl-7-oxo-, [2S-(2a,5a,6b)]-; Furampicillin