A group of beta-lactam antibiotics in which the sulfur atom in the thiazolidine ring of the penicillin molecule is replaced by a carbon atom. THIENAMYCINS are a subgroup of carbapenems which have a sulfur atom as the first constituent of the side chain.

Synonyms: 0, Carbapenem, Carbapenem Antibiotics, Antibiotics, Carbapenem, Carbapenems