Ampicillin oligomer 1 (trimer)

Chemical Name: (4S,4'S)-2,2'-{(1R,7R,13R)-1-Amino-14-[(2S,5R,6R)-2-carboxy-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptan-6-ylamino]-2,5,8,11,14-pentaoxo-1,7,13-triphenyl-3,6,9,12-tetraazatetradecane-4,10-diyl}bis(5,5-dimethylthiazolidine-4-carboxylic acid) (as per USP)

Smile: O=C(N[C@H]1[C@@]2([H])SC(C)(C)[C@H](C(O)=O)N2C1=O)[C@@H](C3=CC=CC=C3)NC(C(C4SC(C)(C)[C@H](C(O)=O)N4)NC([C@@H](C5=CC=CC=C5)NC(C(C6SC(C)(C)[C@H](C(O)=O)N6)NC([C@H](N)C7=CC=CC=C7)=O)=O)=O)=O