1 973 (5z)-3-(4-chlorophenyl)-4-hydroxy-5-(1-naphthylmethylene)furan-2(5h)-one 1.000 2 IAH 3-[[(1r,2r,4as,8ar)-2-methyl-1,2,4a,5,6,7,8,8a-octahydronaphthalen-1-yl]carbonyl]-5-(4-hydroxyphenyl)-4-oxidanyl-1h-pyridin-2-one 0.710