Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Journal of the Chemical Society [Section] D: Chemical Communications called Structure of some uranium(IV) chelates in solution, Author is Siddall, Thomas H. III; Stewart, William Esley, which mentions a compound: 18362-64-6, SMILESS is CC(C)C(CC(C(C)C)=O)=O, Molecular C9H16O2, Category: thiazole.
N.M.R. spectral data of UL4 [HL = RC(O)CH2C(O)R, where R = Me, Et, iso-Pr, tert-Bu] and UL4-xL1x [x = 1-3, R in HL = tert-Bu, and HL1 = HL (R = Et)] indicate a less sym. structure for the compounds than a D2 sq. antiprism or a D2d triangular dodecahedron.
If you want to learn more about this compound(2,6-Dimethyl-3,5-heptanedione)Category: thiazole, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(18362-64-6).
Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica