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(2007)(-)-(3aR,4S,7S,8aR,8bS)-7-fluorohexahydro-4-(naphthalen-2-yl)-2-(phenylmethyl)pyrrolo[3,4-a]pyrrolizine-1,3(2H,4H)-dione
(-)-S-methyl O-[(3aR,4S,7R,8aR,8bS)-decahydro-4-(naphthalen-2-yl)-1,3-dioxo-2-(phenylmethyl)pyrrolo[3,4-a]pyrrolizin-7-yl] dithiocarbonate
(-)-(3aR,4S,7R,8aR,8bS)-hexahydro-7-methoxy-4-(naphthalen-2-yl)-2-(phenylmethyl)pyrrolo[3,4-a]pyrrolizine-1,3(2H,4H)-dione
(-)-[(1S,2R,3S,6R,7aR)-hexahydro-6-methoxy-3-(naphthalen-2-yl)-2-{[(phenylmethyl)amino]carbonyl}-1H-pyrrolizin-1-yl]methyl bis(phenylmethyl) phosphate
(-)-((1S,2R,3S,6S,7aR)-6-fluorohexahydro-3-(naphthalen-2-yl)-2-{[(phenylmethyl)amino]carbonyl}-1H-pyrrolizin-1-yl)methyl bis(phenylmethyl) phosphate