lactam

A cyclic amide, or any compound containing it, formed by the intramolecular condensation of an amino carboxylic acid.

The name of a class of organic compounds containing the group or They are formed by the elimination of water from γ-or δ-amino acids respectively, the reaction being characteristic of these two classes of compounds. They are simple cyclicacid amides.

One of a series of anhydrides of an amido type, analogous to the lactones, as oxindol; a cyclic amide.

an antibiotic containing a beta-lactam, such as a penicillin, cephalosporin, or carbapenem; also called a beta-lactam antibiotic.

Any of a class of cyclic amides, that are the nitrogen analogs of lactones, formed by heating amino acids; the tautomeric enol forms are known as lactims.