(3R-cis)-Dihydro-3-(phenylmethyl)-1H-pyrrolo(1,2-a)imidazole-2,5(3H,6H)-dione 153482-89-4 1H-Pyrrolo(1,2-a)imidazole-2,5(3H,6H)-dione, dihydro-3-(phenylmethyl)-, (3R-cis)-