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(S)-(-)-1-(N-(1-ETHOXYCARBONYL-3-PHEN& L-N-TRIFLUOROACETYLGLUTAMIC ANHYDRIDE (L)-N-(TRIFLUOROACETYL)GLUTAMIC ACID 1-ETHYL ESTER ETHYL 3,3,3-TRIFLUORO-2-HYDROXY-2-[(2,2,2-TRIFLUOROACETYL)AMINO]PROPANOATE (R)-2-TRIFLUOROACETAMIDESUCCINIC ANHYDRIDE L-PHENYLALANINE, 5-(ACETYLOXY)-N-TRIFLUOROACETYL-2-TRIMETHYLSTANNYL, ETHYL ESTER N-(5,5-DIMETHYL-2-OXOTETRAHYDRO-3-FURYL)-2,2,2-TRIFLUOROACETAMIDE (2,2,2-TRIFLUORO-ACETYLAMINO)-ACETIC ACID ETHYL ESTER (S)-(-)-2-(TRIFLUOROACETAMIDO)SUCCINIC ANHYDRIDE