NMR Spectrum

Prediction： 1H NMR (DMSO 300 MHz) delta11.6 (br. s, 1H, 3NH); 8.42 (s, 1H, H-C(6)); 7.38 (d, 1H, J=16.2 Hz, CH=CH); 6.86 (d, 1H, J=16.2 Hz, CH=CH); 6.14 (t, 1H, J=6.3, H-C(1)); 5.26 (d, 1H J= 4.2 Hz, 3-OH); 5.17 (t, 1H, J= 5.4 Hz, 5-OH); 4.26 (m, 1H, H-C(3)); 3.81 (dd, 1H, J= 6.6, 3.3 Hz, H-C(4)); 3.69 (s, 3H, OMe); 3.63-3.59 (m, 2H, H-C(5)); 2.21-2.16 (m, 2H, H-C(2)).

    ¹H NMR

¹³C NMR