1-(2-Furan-3-yl-ethyl)-2,5-dimethyl-7-oxo-1,2,3,4,4a,7,8,8a-octahydro-naphthalene-1-carboxylic acid methyl ester 1-naphthalenecarboxylic acid, 1-[2-(3-furanyl)ethyl]-1,2,3,4,4a,7,8,8a-octahydro-2,5-dimethyl-7-oxo-, methyl ester, (1R,2R,4aR,8aS)- InChI=1/C20H26O4/c1-13-10-16(21)11-18-17(13)5-4-14(2)20(18,19(22)23-3)8-6-15-7-9-24-12-15/h7,9-10,12,14,17-18H,4-6,8,11H2,1-3H3/t14-,17+,18+,20-/m1/s methyl rel-(1R,2R,4aR,8aS)-1-[2-(3-furyl)ethyl]-2,5-dimethyl-7-oxo-1,2,3,4,4a,7,8,8a-octahydronaphthalene-1-carboxylate trans-Cajucarin B