Robuta

https://webbook.nist.gov/cgi/inchi/InChI%3D1S/C6H11NO2/c1-6(2)3-7-5(8)9-4-6/h3-4H2%2C1-2H3%2C(H%2C7%2C8) 5,5-Dimethyltetrahydro-1,3-oxazin-2-one one https://webbook.nist.gov/cgi/inchi?ID=R232590&Units=CAL cis-5-Isopropenyl-2,2-dimethyltetrahydro-furan-3-yl-methyl acetate cisfuranylacetate