1 4NJ (5s)-3,5-bis(4-chlorobenzyl)-4-(6-chloro-1h-indol-3-yl)-5-hydroxy-1-methyl-1,5-dihydro-2h-pyrrol-2-one 1.000 2 4NX (5r)-3,5-bis(4-chlorobenzyl)-4-(6-chloro-1h-indol-3-yl)-5-hydroxyfuran-2(5h)-one 0.914