(2S,6R)-(2-phenylacetoxy)methyl 3,3-dimethyl-7-oxo-6-(2-phenylacetamido)-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate 4-oxide

[2S-(2alpha,5alpha,6beta)]-3,3-二甲基-7-氧代-6-(苯基乙酰氨基)-4-硫杂-1-氮杂双环[3.2.0]庚烷-2-羧酸 4-氧化物

benzylpenicillin

(7R)-(2-phenylacetoxy)methyl 3-methyl-8-oxo-7-(2-phenylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

(2S,6R)-(2-phenylacetoxy)methyl 3,3-dimethyl-7-oxo-6-(2-phenylacetamido)-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate