Compound 9e was obtained in 19% total yield; m.p. >300°C; TLC (chloroform/methanol 9/1); Rf = 0.54; 1H-NMR (400 MHz, DMSO-d 6) δ: 10.43 (2H, s, NH), 8.48 (2H, s, 2H-4), 8.39 (2H, s, 2H-7), 8.05 (6H, s, H-3′,5′,2″,3″,5″,6″), 7.78 (2H, s, H-3′,5′), 7.39 (4H, s, 2H-2′,2H-6′), 5.95 (4H, s, 2CH2). 13C-NMR (DMSO-d 6) δ: 166.7 (2CO), 164.9 (2C), 144.3 (2C), 138.9 (2C), 138.4 (2C), 131.9 (2C), 130.7 (2C), 130.7 (2C), 129.4 (2CH), 129.2 (4CH), 127.9 (4CH), 127.2 (2C), 120.6 (4CH), 112.5 (2CH), 50.9 (2CH2). C34H22Cl4N8O2; MW 716.40; Elem. Anal.: Calcd C 57.00, H 3.10, N 15.64 Found C 57.24, H 3.36, N 15.32. LC/MS: m/z 717 [M + K]+, 715 [M + H]+.
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