2,3-Dihydroochnaflavone 7"-O-methyl ether

2,3-Dihydroochnaflavone 7"-O-methyl ether

Common Name: 2,3-Dihydroochnaflavone 7"-O-methyl ether

Synonyms: 4H-​1-​Benzopyran-​4-​one, 2-​[4-​[5-​(3,​4-​dihydro-​5,​7-​dihydroxy-​4-​oxo-​2H-​1-​benzopyran-​2-​yl)​-​2-​hydroxyphenoxy]​phenyl]​-​2,​3-​dihydro-​5-​hydroxy-​7-​methoxy-

CAS Registry Number: 1206804-49-0

InChI:

InChIKey:

Formula: C31H22O10

Molecular Weight: 554.507

Exact Mass: 554.1213

NMR Solvent: Me2CO-d6

MHz: 300.13 (1H), 75 (13C)

Calibration: TMS

NMR references: Reddy, B., Reddy, N., Gunasekar, D., Blond, A., Bodo, B. (2008). Phytochem. Lett. 1, 27-30.

Species: Ochna lanceolata - Reddy, B., Reddy, N., Gunasekar, D., Blond, A., Bodo, B. (2008). Phytochem. Lett. 1, 27-30.

Notes:

Proton NMR Peaks

Position PPM Peak Type J (Hz)
2 5.49 dd 12.7, 3
3-ax 3.22 dd 17.1, 12.7
3-eq 2.83 dd 17.1, 3
5-OH 12.1 s
6 6.01 d 2.4
7-OH 9.58 s
8 6.04 d 2.4
2' 7.3 d 2.2
4'-OH 8.7 s
5' 7.09 d 8.8
6' 7.31 dd 8.8, 2.2
3" 6.64 s
5"-OH 12.89 s
6" 6.25 d 2.2
7"-OCH3 3.87 s
8" 6.49 d 2.2
2''', 6''' 8.01 d 9
3''', 5''' 7.12 d 9

Carbon NMR Peaks

Position PPM
2 79.3
3 43.4
4 196.9
5 165.2
6 96.9
7 167.3
8 95.9
9 164.1
10 102.1
1' 133.2
2' 121.5
3' 142.7
4' 150.5
5' 118.4
6' 125.5
2" 164.4
3" 105
4" 183
5" 163.3
6" 99.8
7" 165
8" 94.7
9" 158.8
10" 105.3
1''' 125.9
2''' 129.7
3''' 117.4
4''' 162.1
5''' 117.4
6''' 129.7
7"-OCH3 56