反应详情

A solution of amine 22 (0.040 g, 0.12 mmol) and cyclohexane carbonyl chloride (0.100 ml, 0.68 mmol) in dry THF-Pyridine (10 ml/0.300 ml) was stirred at room temperature overnight. A usual work-up as described earlier afforded the diamide 23 (0.025 g, 47%). M.p. 258° C.; 1H NMR (DMSO-d6, 500 MHz): δ 13.5 (1H, brs, NH), 10.60 (1H, brs, NH), 10.13 (1H, brs, NH), 8.78 (1H, d, J=5.0 Hz), 8.74 (1H, brs), 8.46 (1H, brs), 8.24 (1H, d, J=12.5 Hz), 8.115 (2H, d, J=8.0 Hz), 7.81 (2H, d, J=8.0 Hz), 7.74 (1H, dt, J=10.0 and 13.5 Hz), 2.37 (1H, m), 1.84-1.18 (10H, m); EIMS m/z: 441.4 (M+1), 439.6 (M−1); Anal (C25H24N6O2×1.10 H2O) C, H, N.