1 JQA (4r,4ar,6r,8ar)-1-benzyloctahydro-2h-6,4-(epiminomethano)-3,1-benzoxazin-2-one 1.000 2 3AK 1-benzyl-1h-indole-2,3-dione 0.727 3 UTS 1-benzyl-1h-benzimidazole 0.714