反应详情

A method similar to the one described for (97) was used except that N-[(2,3-cis)-4-oxo-2-phenyl-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-yl]-L-phenylalaninamide (105a) was used as the amine component and 3,5-difluorophenylacetic acid was used as the acid component to afford the title compound as a 1:1 mixture with the 2S,3S diastereomer (58 mg), white solid, m.p. 115-120° C. 1H NMR (300 MHz, d6-DMSO) δ 4.45 (m, 1H), 4.75 (m, 1H), 5.10 (m, 1H), 6.70 (m, 2H), 6.95-7.90 (m, 16H), 8.25 (two d, 1H, J=8 Hz), 10.5 (m, 1H). MS APCI, m/z=572 (M+1). LC/MS: 2.68 min.