Cbz-R-3-Amino-?-butyrolactone 

(R)-BENZYL-5-OXO-TETRAHYDROFURAN-3-YL CARBAMATE; BENZYL (R)-5-OXOTETRAHYDROFURAN-3-YLCARBAMATE; N-[(3R)-Tetrahydro-5-oxo-3-furanyl]carbamic acid phenylmethyl ester; 3(R)-[(Carbobenzyloxy)amino]-?-butyrolactone; Cbz-R-3-Amino-?-butyrolactone; (R)-3-(Cbz-aMino)-5-oxotetrahydrofuran; (R)-4-benzyloxycarbonylaMino-4,5-dihydro-2(3H)-furanone 10g; (R)-4-(Cbz-aMino)-2-oxotetrahydrofuran;Benzyl (R)-5-oxotetrahydrofuran-3-ylcarbamate