反应详情

(R)-3-{[1-(3,4-Difluoro-benzyl)-2-oxo-1,2-dihydro-pyridine-3-carbonyl]-amino}-3-[5-(1H-pyrrolo[2,3-b]pyridin-3-yl)-thiophen-2-yl]-propionic acid (0.040 g, 0.000075 mol;) was dissolved in N,N-Dimethylformamide (3 mL, 0.04 mol;) and Ethylamine (7 mg, 0.0001 mol;) then N,N,N′,N′-Tetramethyl-O-(7-azabenzotriazol-1-yl)uronium Hexafluorophosphate (0.037 g, 0.000097 mol;) was added. The reaction was allowed to stir for 2 hours and LC-MS showed disappearance of starting material and appearance of product at 1.28 562.10. The reaction was purified by Gilson Preparative HPLC and the pure fractions were concentrated. ES (+) MS m/e=562.10; NMR (400 MHz, DMSO-d6) δ ppm 0.92 (t, 3H, J=7 Hz), 2.76 (m, 2H), 2.95 (m, 2H), 5.22 (m, 2H), 5.66 (m, 1H), 6.66 (t, 1H, J=8 Hz), 6.99 (d, 1H, J=3 Hz), 7.14-7.21 (m, 3H), 7.38-7.49 (m, 2H), 7.79 (m, 1H), 8.2-8.25 (m, 2H), 8.29 (m, 1H), 8.4 (dd. 1H), 10.22 (d, 1H), 11.95 (s, 1H)

1. customThe reaction was purified by Gilson Preparative HPLC
2. concentrationthe pure fractions were concentrated