biostudies-literatureUnknown64(Pt 2)Brito IAROMATICINE (SYSTEMATIC NAME: 4a,8-dimethyl-3-methyl-ene-3,3a,4,4a,7a,8,9,9a-octa-hydro-azuleno[6,5-b]furan-2,5-dione), C(15)H(18)O(3), is a natural lactone isolated from Amblyopappus pusillus. The mol-ecular structure and conformation agree with the results of Romo, Joseph-Nathan & Díaz [(1964 ▶). Tetra-hedron, 20, 79-85]. The fused-ring system contains a seven-membered ring in a twist-boat conformation and two five-membered rings trans fused in envelope conformations.Acta crystallographica. Section E, Structure reports onlineo529https://www.ebi.ac.uk/biostudies/studies/S-EPMC2960399biostudies-literatureAromaticine, a sesquiterpene lactone from Amblyopappus pusillus.PMC2960399Lopez-Rodriguez MBorquez JLoyola LABrito IfalseAromaticine, a sesquiterpene lactone from Amblyopappus pusillus.AROMATICINE (SYSTEMATIC NAME: 4a,8-dimethyl-3-methyl-ene-3,3a,4,4a,7a,8,9,9a-octa-hydro-azuleno[6,5-b]furan-2,5-dione), C(15)H(18)O(3), is a natural lactone isolated from Amblyopappus pusillus. The mol-ecular structure and conformation agree with the results of Romo, Joseph-Nathan & Díaz [(1964 ▶). Tetra-hedron, 20, 79-85]. The fused-ring system contains a seven-membered ring in a twist-boat conformation and two five-membered rings trans fused in envelope conformations.2008-01-01T00:00:00Z2008 Jan2025-04-18T12:26:53.223Z2019-03-26T23:59:51ZS-EPMC29603992120154810.1107/S1600536808002729