1,5-naphthalenedicarboxylic acid, 1,2,3,4,4a,7,8,8a-octahydro-6-[(1Z)-3-methoxy-3-oxo-1-propenyl]-1,4a-dimethyl-, 1-methyl ester, (1S,4aS,8aR)- InChI=1/C19H26O6/c1-18-10-5-11-19(2,17(23)25-4)13(18)8-6-12(15(18)16(21)22)7-9-14(20)24-3/h7,9,13H,5-6,8,10-11H2,1-4H3,(H,21,22)/b9-7-/t13-,18+,19+/m1/s rel-(4aR,5S,8aS)-5-(methoxycarbonyl)-2-[(1Z)-3-methoxy-3-oxoprop-1-en-1-yl]-5,8a-dimethyl-3,4,4a,5,6,7,8,8a-octahydronaphthalene-1-carboxylic acid