Reaction Steps
Benzyl (1R,2R)-2-((S)-1-(4-nitrophenyl)piperidin-3-ylamino)cyclohexylcarbamate was synthesized using (1R,2R)—N1-(1-(4-nitrophenyl)piperidin-3-yl)cyclohexane-1,2-diamine (from intermediate C, Example 2) (30 mg, 0.094 mmol) and benzyl carbonochloridate (16.07 mg, 0.094 mmol) according to General Procedure G to give 5 mg (12% yield) of the product as a yellow solid. Anal. Calcd. for C25H32N4O4 m/z 452.5, found: 453.3 (M+H)+; 1H NMR (500 MHz, CDCl3) δ ppm 8.08 (d, J=9.3 Hz, 2H), 7.36-7.29 (m, 5H), 6.77 (d, J=9.3 Hz, 2H), 5.05 (br. s., 2H), 4.91 (br. s., 1H), 3.75 (d, J=10.4 Hz, 1H), 3.66 (d, J=12.6 Hz, 1H), 3.31 (d, J=7.7 Hz, 1H), 3.04 (t, J=10.7 Hz, 1H), 2.83 (br. s., 2H), 2.54 (br. s., 1H), 2.15-2.03 (m, 2H), 1.99-1.91 (m, 1H), 1.83 (dd, J=9.1, 4.7 Hz, 2H), 1.79-1.69 (m, 3H), 1.32 (d, J=8.8 Hz, 2H), 1.48 (br. s., 1H), 1.62 (ddd, J=13.9, 10.4, 10.3 Hz, 2H); 13C NMR (126 MHz, CDCl3) δ ppm 156.63, 154.71, 136.37, 128.52, 128.14, 126.12, 112.77, 66.77, 59.06, 50.93, 47.94, 32.19, 29.68, 24.53, 23.07.
