2,3-dihydroochnaflavone 7,4',7"-tri-O-methyl ether

2,3-dihydroochnaflavone 7,4',7"-tri-O-methyl ether

Common Name: 2,3-dihydroochnaflavone 7,4',7"-tri-O-methyl ether

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

CAS Registry Number: 618912-38-2

InChI:

InChIKey:

Formula: C33H26O10

Molecular Weight: 582.561

Exact Mass: 582.1526

NMR Solvent: DMSO-d6

MHz: 300 (1H), 75 (13C)

Calibration: TMS

NMR references: Jayakrishna, G., Reddy, M., Jayaprakasam, B., Gunasekar, D., Blond, A., Bodo, B. (2003). A New Biflavonoid From Ochna beddomei. J. Asian Nat. Prod. Res. 5, 83-87.

Species: Ochna beddomei - Jayakrishna, G., Reddy, M., Jayaprakasam, B., Gunasekar, D., Blond, A., Bodo, B. (2003). A New Biflavonoid From Ochna beddomei. J. Asian Nat. Prod. Res. 5, 83-87.

Notes:

Proton NMR Peaks

Position PPM Peak Type J (Hz)
2 5.6 dd 12.7, 3.1
3ax 3.29 dd 17.1, 12.7
3eq 2.84 dd 17.1, 3.1
6 6.05 d 2.3
8 6.1 d 2.3
2' 7.4 d 2.1
5' 7.28 d 8.5
6' 7.47 dd 8.5, 2.1
3" 6.85 s
6" 6.34 d 2.2
8" 6.72 d 2.2
2''', 6''' 8.06 d 8.9
3''', 5''' 7.01 d 8.9
5-OH 12.1 s
7-OCH3, 4'-OCH3 3.8 s
5"-OH 12.9 s
7"-OCH3 3.89 s

Carbon NMR Peaks

Position PPM
2 77
3 42
4 196.6
10 102.9
5 163.2
6 94.6
7 167.5
8 94
9 162.6
1' 131.7
2' 120.9
3' 142.1
4' 151.6
5' 113.5
6' 125.1
7-OCH3 55.8
4'-OCH3 55.8
2" 163.3
3" 104.2
4" 182
10'' 104.8
5" 161.3
6" 98
7" 165.3
8" 93
9'' 157.3
1''' 124.3
2''' 128.5
3''' 116
4''' 161
5''' 116
6''' 128.5
7"-OCH3 56