2''-Methoxy-2-epi-daphnodorin C

2''-Methoxy-2-epi-daphnodorin C

Common Name: 2''-Methoxy-2-epi-daphnodorin C

Synonyms: Spiro[benzofuran-​2(3H)​,​9'(8'H)​-​[2H]​furo[2,​3-​h]​[1]​benzopyran]​-​3-​one, 3',​4'-​dihydro-​4,​5',​6-​trihydroxy-​2',​8'-​bis(4-​hydroxyphenyl)​-​8'-​methoxy-​, (2S,​2'S,​8'R)​-

CAS Registry Number: 1143523-56-1

InChI:

InChIKey:

Formula: C31H24O10

Molecular Weight: 556.52

Exact Mass: 556.137

NMR Solvent: CD3OD

MHz: 600 (1H), 150 (13C)

Calibration: TMS

NMR references: Liang, S., Tang, J., Shen, Y., Jin, H., Tian, J., Wu, Z., Zhang, W., Yan, S. (2008). Biflavonoids from Daphne feddei and Their Inhibitory Activities against Nitric Oxide Production. Chem Pharm. Bull. 56, 1729-1731.

Species: Daphne feddei - Liang, S., Tang, J., Shen, Y., Jin, H., Tian, J., Wu, Z., Zhang, W., Yan, S. (2008). Biflavonoids from Daphne feddei and Their Inhibitory Activities against Nitric Oxide Production. Chem Pharm. Bull. 56, 1729-1731.

Notes:

Proton NMR Peaks

Position PPM Peak Type J (Hz)
2 4.7 d 10.8
3 2.59 m
4 2.69 m
4 2.22 m
4 1.68 m
6 6.14 s
2' 6.81 d 8.4
3' 6.53 d 8.4
5' 6.53 d 8.4
6' 6.81 d 8.4
6" 5.81 d 1.8
8" 5.5 d 1.8
2''' 7.15 d 8.4
3''' 6.7 d 8.4
5''' 6.7 d 8.4
6''' 7.15 d 8.4
OCH3 3.2 s

Carbon NMR Peaks

Position PPM
2 77.8
3 20.4
4 30.2
10 104.7
5 160.6
6 91.3
7 173.4
8 103.8
9 154.4
1' 133.6
2' 127.2
3' 115.7
4' 157.3
5' 115.7
6' 127.2
2" 117.1
3" 105.6
4" 194.3
10'' 104.7
5" 162.2
6" 97.3
7" 159.3
8" 90.9
9'' 170.8
1''' 126.7
2''' 129.5
3''' 115.9
4''' 159.3
5''' 115.8
6''' 129.5
OCH3 51.9