“…Hz, 4 J = 1.0 Hz,), 7.21 (td, 2H 12,20 , 3 J = 8.4 Hz, 4 J = 1.6 Hz), 7.69 (dd, 2H 10,18 , 3 J = 8.0 Hz, 4 J = 1.6 Hz), 7.87 (s, 2H 1,5 ), 8.57 (br s, 2H 15,23 ), 10.23 (s, 2H 8,16 ), 11.41 (s, 1H, -OH). 13 C NMR (100.62 MHz, DMSO): 19.5 (C 7 ), 109.5 (C 14,22 ), 114.5 (C 2,4 ), 116.3 (C 12,20 ), 123.2 (C 10,18 ), 129.20 (C 6 ), 131.1 (C 13,21 ), 133.7 (C 1,5 ), 137.3 (C 11,19 ), 151.4 (C 9,17 ), 160.3 (C 3 ), 169.5 (C 8,16 ), 192.2 (C 15,23 ). MS (% relative abundance of m/z assignment): 403 (0.013) [SB + H] + .…”