(3S,3aS,7S,7aR)-7-methyl-3-phenylhexahydro-1H-isoindole-1,5(4H)-dione

(2S,3S,4S)-4-isopropenyl-3-methoxycarbonylmethyl-5-oxopyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester

(1S,3aR,4S,7aS)-4-methyl-3,6-dioxo-1-phenyl-octahydro-isoindole-2-carboxylic acid tert-butyl ester

(1S,3aS,7R,7aS)-4-methyl-3,7-dioxoperhydrooxepino[4,5-c]pyrrole-1,2-dicarboxylic acid 2-tert-butyl ester 1-methyl ester

1-(tert-butyl) 2-methyl (2S,3S,4S)-4-[(1R)-2-hydroxy-1-methylethyl]-3-(2-methoxy-2-oxoethyl)-5-oxo-tetrahydro-1H-1,2-pyrroledicarboxylate