Ethanamine, 2,2,2-trifluoro- → (S)-N-[(S)-5-(2-Benzyloxy-ethyl)-6-oxo-6,7-dihydro-5H-dibenzo[b,d]azepin-7-yl]-2-fluoro-2-methyl-N'-(2,2,2-trifluoro-ethyl)-malonamide

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Using (R)—N—[(S)-5-(2-benzyloxy-ethyl)-6-oxo-6,7-dihydro-5H-dibenzo[b,d]azepin-7-yl]-2-fluoro-2-methyl-malonamic acid and 2,2,2-trifluoro-ethylamine, the title compound was prepared in the same manner as described for example 1c. Final chromatography on silica (heptane/ethyl acetate gradient from 5 to 100%) afforded the title compound as white solid (58%). MS: m/e=558(M+H+).

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