User:Biochemlabstudent1996/sandbox
From Wikipedia, the free encyclopedia
Not to be confused with penem.
Penams are the primary skeleton structures of the Penicillin subclass of the broader β-lactam family of antibiotics and related compounds. They are bicyclic ring systems containing a β-lactam moiety fused with a five member thiazolidine ring. [1] Due to ring strain and limitations on amide resonance, the structure is unstable and highly susceptible to catalytic cleaveage at the amide bond.[2]