The oxazolidones and isoxazolidones are a set of six isomeric five-membered heterocyclic compounds consisting of a carbonyl group, an oxygen atom, a nitrogen atom with a hydrogen atom attached, and two methylene groups. The chemicals differ in the relative position of these groups around the ring, which results in different functional group combinations.
| 2-Oxazolidinone | 4-Oxazolidinone | 5-Oxazolidinone | |
|---|---|---|---|
| [497-25-6] | [5840-83-5] | [6542-32-1] | |
| 3-Isoxazolidinone | 4-Isoxazolidinone | 5-Isoxazolidinone | |
| [1192-07-0] | [2168656-08-2] | [98026-51-8] |
2-Oxazolidinone is the parent compound of several protein synthesis inhibitor antibiotics and the Evans chiral auxiliaries for aldol reactions. Cycloserine is an antibiotic based on the 3-isoxazolidone parent.