تفاعل #706074
ord-ccc4e3e18c8847d49ef624056e760859
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[α]D +54.9° (MeOH, c 0.93); UV λmax (ε) 250 (20518), 284 (3857); IR (neat) νmax 3411, 3271, 2966, 1746, 1728, 1668, 1505, 1463, 1258, 1178 cm-1 ; EIMS m/z (rel intensity) 638/640 (4.5/1.1), 412/414 (59/19), 280(17), 227 (100); high resolution EIMS m/z 638.272934 (calcd for C35H43ClN2O7, 2.9 mmu error). 1H NMR (CDCl3): amino or hydroxy acid unit δ (carbon position, multiplicity; J in Hz) 5-hydroxy-6-methyl-8-phenyl-2,7-octadienoic acid (A) 5.76 (2, d; 15.5), 6.65 (3, ddd; 15.4, 9.2 and 6.2), 2.38-2.47 (4, m), 5.08 (5,ddd; 10.6, 4.9 and 2.2), 2.58 (6, m), 1.15 (6-Me, d; 6.8), 6.07 (7, dd; 15.9 and 8.5), 6.43 (8, d; 15.9), 7.21-7.35 (10/11/12/13/14, m); 3-chloro-4-methoxy-phenylalanine (B) 4.83 (2, m), 3.05(3, dd; 14.5 and 7.1), 5.65 (2-NH, d; 8.7), 3.14 (3, dd; 14.4 and 5.5), 7.21 (5, d; 2.4), 3.86 (7-OCH3, s), 6.83 (8, d; 8.3), 7.08 (9, dd; 8.3 and 2.2), 3-amino-2-methylpropionic acid (C) 2.73 (2, m), 1.23 (2-Me, d; 7.2), 3.23 (3, dt; 13.5 and 6.8), 3.56 (3, ddd; 13.5, 5.7 and 4.0), 6.85 (3-NH, dd; 7.1 and 6.2); leucic acid (D) 4.8 (2, d; 4.6), 1.86-1.89 (3, m), 0.94 (3-Me, d; 7.0), 1.20-1.26 (4, m), 1.39-1.44 (4, m), 0.77 (5, d; 7.4). 13C NMR (CDCl3) unit δ (carbon position) A 165.5 (1), 125.2 (2), 141.5 (3), 36.4 (4), 77.7 (5), 41.9 (6), 17.1 (6-Me), 129.8 (7), 131.9 (8), 136.8 (9), 128.6 (10/14), 126.2 (11/13), 127.6 (12); B 170.0 (1), 53.5 (2), 35.1 (3), 129.9 (4), 131.1 (5), 122.4 (6), 153.9 (7), 56.1 (7-OCH3), 112.2 (8), 128.5 (9); C 175.3 (1), 38.6 (2), 14.0 (2-Me), 41.4 (3), D 169.5 (1), 76.6 (2), 36.2 (3), 15.5 (3-Me), 24.2 (4), 14.0 (5).