Table 1 1H NMR and 13C NMR data of antimalarial drug 3-amino-7,9-dihydroxy-1-methyl-6H-benzo[c]chromen-6-one (δ in ppm, J in Hz and NMR solvent DMSO-d6)
From: A novel fungal metabolite inhibits Plasmodium falciparum transmission and infection
Position | 1H NMR data (400 MHz) | 13C NMR data (100 MHz) | Structure |
|---|---|---|---|
1 | – | 138.2 |
1 |
2 | 6.69 (d, J = 2.1 Hz, 1H) | 108.9 | |
3 | – | 152.6 | |
4 | 6.61 (d, J = 2.2 Hz, 1H) | 100.8 | |
5 | – | 158.4 | |
6 | – | 101.6 | |
7 | – | 164.6 | |
8 | 6.34 (d, J = 1.2 Hz, 1H) | 97.3 | |
9 | – | 164.0 | |
10 | 7.21 (s, 1H) | 104.3 | |
11 | – | 138.0 | |
12 | – | 117.5 | |
13 | – | 165.4 | |
–CH3 | 2.67 (s, 3H) | 25.1 | |
–NH2 | 10.61 (s, br, 2H) | ||
–OH | 11.76 (s, 1H), 5.74 (s, 1H) |
