1 MNZ (4~{a}~{R},5~{S},6~{R},8~{S},8~{a}~{R})-5-[2-(furan-3-yl)ethyl]-5,6,8~{a}-trimethyl-8-oxidanyl-3,4,4~{a},6,7,8-hexahydronaphthalene-1-carboxylic acid 1.000 2 UK0 (4~{a}~{R},5~{S},6~{R},8~{a}~{R})-5-[2-(furan-3-yl)ethyl]-5,6,8~{a}-trimethyl-3,4,4~{a},6,7,8-hexahydronaphthalene-1-carboxylic acid 0.958