2,3-dihydro-7,7"-dimethoxyamentoflavone

2,3-dihydro-7,7"-dimethoxyamentoflavone

Common Name: 2,3-dihydro-7,7"-dimethoxyamentoflavone

Synonyms: 4H-​1-​Benzopyran-​4-​one, 2,​3-​dihydro-​5-​hydroxy-​2-​[4-​hydroxy-​3-​[5-​hydroxy-​2-​(4-​ hydroxyphenyl)​-​7-​methoxy-​4-​oxo-​4H-​1-​benzopyran-​8-​yl]​phenyl]​-​7-​methoxy-​, (2S)​-

CAS Registry Number: 583059-60-3

InChI:

InChIKey:

Formula: C32H24O10

Molecular Weight: 568.53

Exact Mass: 568.137

NMR Solvent: DMSO-d6

MHz: 400 (1H), 100 (13C)

Calibration: Referenced to the solvent signal.

NMR references: Li, S., Zhang, H., Niu, X., Yao, P., Sun, H., Fong, H. (2003). Chemical Constituents from Amentotaxus yunnanensis and Torreya yunanensis. J. Nat. Prod. 66, 1002-1005.

Species: Amentotaxus yunnanensis - Li, S., Zhang, H., Niu, X., Yao, P., Sun, H., Fong, H. (2003). Chemical Constituents from Amentotaxus yunnanensis and Torreya yunanensis. J. Nat. Prod. 66, 1002-1005.

Notes:

Proton NMR Peaks

Position PPM Peak Type J (Hz)
2 5.54 dd 2.8, 13.2
3a 3.42 m
3b 2.73 m
6 6.05 d 2.8
8 6.06 d 2.8
2' 7.39 d 2.1
5' 7.01 d 8.4
6' 7.42 dd 2, 8.4
3" 6.83 s
6" 6.62 s
2''' 7.58 dd 3.6, 8.4
3''' 6.78 dd 3.2, 8.8
5''' 6.78 dd 3.2, 8.8
6''' 7.58 dd 3.6, 8.4
5-OH 12.1 s
4'-OH 9.56 s
5"-OH 13.21 s
4'''-OH 10.37 s
7-OCH3 3.74 s
7"-OCH3 3.81 s

Carbon NMR Peaks

Position PPM
2 78.6
3 42.1
4 196.7
5 163.1
6 94.6
7 167.3
8 93.6
9 162.9
10 102.5
1' 128.5
2' 131.2
3' 118.6
4' 155.9
5' 115.4
6' 127.8
7-OCH3 55.7
2" 163.9
3" 102.3
4" 182.3
5" 161
6" 95.3
7" 162.6
8" 105.7
9" 153.4
10" 104
1''' 121.2
2''' 128.3
3''' 115.7
4''' 161.1
5''' 115.7
6''' 128.3
7"-OCH3 56.2