9e: 36%; 1H NMR (400 MHz, CDCl3) δ 7.42 (1 H, d, J = 9.2 Hz), 7.14 (3 H, m), 7.02 (1 H, s), 6.94
(1 H, d, J = 4.0 Hz), 6.89 (1 H, s), 6.71 (2 H, m), 6.20 (1 H, d, J = 9.6 Hz), 6.20 (1 H, d, J = 3.6 Hz),
5.12 (2 H, s), 3.02 (4 H, q, J = 7.2 Hz), 0.99 (6 H, t, J = 6.8 Hz); 13C NMR (150 MHz, CDCl3) δ
161.2, 155.7, 153.2, 142.9, 138.2, 136.5, 133.1, 128.7, 127.9, 127.1, 120.9, 120.7, 114.4, 113.3,
112.13, 110.4, 106.7, 104.8, 50.6, 45.9, 12.4; HRMS (ESI+) Calcd. for C25H24N3O2 [M + H]+ :
398.1863. Found 398.1869.
10b: 66%; 1H NMR (400 MHz, CDCl3) δ 7.45 (1 H, s), 6.92 (1 H, s), 6.88 (1 H, dd, J = 1.4, 4.0 Hz),
6.21 (1 H, s), 6.17 (1 H, dd, J = 1.4, 4.0 Hz), 3.91 (3 H, s), 3.57 (3 H, s), 2.40 (3 H, s); 13C NMR
(150 MHz, CDCl3) δ 160.7, 160.2, 155.9, 152.1, 135.3, 128.0, 119.2, 117.4, 114.1, 113.5, 112.8,
110.7, 105.5, 99.6, 56.2, 33.5, 18.7; HRMS (ESI+) Calcd. for C17H15N2O3 [M + H]+ : 295.1077.
Found 295.1077.
10c: 29%; 1H NMR (400 MHz, CDCl3) δ 7.62 (1 H, s), 7.21 (1 H, s), 7.05 (1 H, d, J = 3.6 Hz), 6.28
(1 H, d, J = 1.2 Hz), 6.22 (1 H, d, J = 3.6 Hz,), 3.87 (3 H, s), 3.86 (2 H, q, J = 7.2 Hz), 2.40 (3 H, d, J
= 0.8 Hz), 1.18 (3 H, t, J = 6.8 Hz); 13C NMR (150 MHz, CDCl3) δ 160.6, 160.2, 155.9, 152.1, 134.2,
128.1, 119.8, 117.5, 114.1, 113.5, 112.8, 110.9, 103.9, 99.6, 56.2, 41.9, 18.7, 16.3; HRMS (ESI+)
Calcd. for C18H17N2O3 [M + H]+ : 309.1234. Found 309.1231.
10d: 40%; 1H NMR (400 MHz, CDCl3) δ7.43 (1 H, s), 6.91 (1 H, s), 6.88(1 H, d, J = 4.1 Hz), 6.21(1
H, s), 6.13 (1 H, d, J = 4.1 Hz), 3.89-.386 (5 H, m), 2.40 (3 H, s), 1.61 (2 H, t, J = 7.3 Hz), 1.18-1.09
(6 H, m), 0.77 (3 H, t, J = 6.9 Hz); 13C NMR (150 MHz, CDCl3) δ 160.9, 160.3, 155.9, 152.3, 134.6,
128.2, 119.8, 117.8, 114.4, 113.6, 112.9, 111.0, 104.6, 99.7, 56.3, 47.1, 31.2, 31.0, 26.2, 22.6, 18.9,
14.0; HRMS (ESI+) Calcd. for C22H25N2O3 [M + H]+ : 365.1860. Found 365.1850.
10e: 38%; 1H NMR (400 MHz, CDCl3) δ 7.40(1 H, s), 6.89(1 H, s), 6.86(1 H, d, J = 4.0 Hz), 6.20(1
H, s), 6.10(1 H, d, J = 3.6 Hz), 3.86(3 H, s), 3.71(2 H, d, J = 7.6 Hz), 2.38(3 H, s), 1.55-1.59(4 H, m),
1.35-1.38(2 H, m), 0.99-1.09(3 H, m), 0.66-0.75(2 H, m); 13C NMR (150 MHz, DMSO-d6) δ 159.9,
159.8, 155.2, 153.3, 135.1, 128.4, 119.5, 116.9, 114.3, 112.9, 111.8, 111.3, 103.8, 99.9, 56.5, 52.3,
29.7, 25.5, 25.0, 18.2; HRMS (ESI+) Calcd. for C23H25N2O3 [M + H]+ : 377.1860. Found 377.1865.
10f: 33%; 1H NMR (400 MHz, CDCl3) δ7.23-7.20 (3 H, m), 7.18 (1 H, s), 6.96(1 H, d, J = 4.0 Hz),
6.87-6.85 (2 H, m), 6.85 (1 H, s), 6.23 (1 H, d, J = 3.6 Hz), 6.14 (1 H, d, J = 1.6 Hz), 5.09 (2 H, s),
3.77 (3 H, s), 2.16 (3 H, d, J = 1.2 Hz); 13C NMR (150 MHz, CDCl3) δ 160.6, 160.2, 155.8, 152.1,
136.6, 134.8, 128.6, 128.2, 127.8, 126.5, 119.9, 117.2, 114.0, 113.2, 112.6, 111.5, 105.3, 99.4, 56.1,
50.3, 18.4; HRMS (ESI+) Calcd. for C23H19N2O3 [M + H]+ : 371.1390. Found 371.1400.