1H NMR (400 MHz, CDCl3) δ 5.51-5.33 (m, 2H), 2.09-1.91 (m, 2H), 1.71-1.57 (m, 3H), 1.44-1.20 (m, 6H), 0.98-0.82 (m, 3H); 13C{H} NMR (101 MHz, CDCl3) δ 131.7, 130.9, 124.5, 123.6, 32.6, 31.5, 31.4, 29.3, 29.3, 26.8, 22.6, 17.9, 14.1, 12.7。