In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Synthesis of CMI-977, a Potent 5-Lipoxygenase Inhibitor, published in 1999-02-28, which mentions a compound: 32780-06-6, Name is (S)-5-(Hydroxymethyl)dihydrofuran-2(3H)-one, Molecular C5H8O3, Related Products of 32780-06-6.
5-Lipoxygenase inhibitor (-)-CMI-977 I is prepared as the (2S,5S) enantiomer in nine steps from (S)-glutamic acid, 4-fluorophenol, 3-butynol, and N,O-bis(phenoxycarbonyl)hydroxylamine, and in seven steps from (S)-(+)-hydroxymethyl-γ-butyrolactone.
Although many compounds look similar to this compound(32780-06-6)Related Products of 32780-06-6, numerous studies have shown that this compound(SMILES:O=C1O[C@H](CO)CC1), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI