反应详情

General procedure D and E were used to deprotect 1.17 mmols of (S)-tert-butyl 1-cyanoethylcarbamate and couple the resulting amine to 1.17 mmols of 31. After standard purification techniques 0.35 mmols of the title product were recovered. 1H NMR (500 MHz, CDCl3) δ 7.74 (d, J=8.9, 2H), 6.90 (d, J=8.8, 2H), 6.67 (s, 1H), 5.30-5.05 (m, 1H), 3.98 (t, J=6.6, 2H), 1.85-1.74 (m, 2H), 1.64 (d, J=7.2, 3H), 1.45 (s, 3H), 1.30 (d, J=19.1, 7H), 0.88 (t, J=6.9, 3H). 13C NMR (126 MHz, CDCl3) δ 166.26, 162.49, 129.11, 124.52, 119.58, 114.40, 68.26, 36.25, 31.77, 29.30, 29.19, 29.07, 25.95, 22.63, 19.53, 14.08.