penillic acids

pe·nil·lic ac·ids

(pe-nil'ik as'idz),
Acid degradation products of penicillins, produced by cleavage of the 1,7 bond, forming penicilloic acid, and formation of a bond between the exocyclic carbonyl carbon and N-1 with elimination of H2O from those two positions and the exocyclic NH.
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