Wikstaiwanone A

Wikstaiwanone A

Common Name: Wikstaiwanone A

Synonyms: [3,​6'-​Bi-​4H-​1-​benzopyran]​-​4-​one, 2',​3'-​dihydro-​3',​5,​5',​7,​7'-​pentahydroxy-​2,​2'-​bis(4-​hydroxyphenyl)​-​, (2'R,​3'R)​-

CAS Registry Number: 1417071-27-2

InChI:

InChIKey:

Formula: C30H22O10

Molecular Weight: 542.496

Exact Mass: 542.1213

NMR Solvent: CD3OD

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

Calibration: not indicated

NMR references: Chen, L., Chen, I., Peng, C. (2012). Structural Elucidation and Bioactivity of Biflavonoids from the Stems of Wikstroemia taiwanensis. Int. J. Mol. Sci. 13, 1029-1038.

Species: Wikstroemia taiwanensis - Chen, L., Chen, I., Peng, C. (2012). Structural Elucidation and Bioactivity of Biflavonoids from the Stems of Wikstroemia taiwanensis. Int. J. Mol. Sci. 13, 1029-1038.

Notes:

Proton NMR Peaks

Position PPM Peak Type J (Hz)
6 6.18 d 2.4
8 6.32 d 2.4
2' 7.26 d 9
3' 6.67 d 9
5' 6.67 d 9
6' 7.26 d 9
2" 4.13 d 7.8
3" 3.9 ddd 7.8, 8.4, 6
4"a 2.86 dd 6, 16.2
4"b 2.46 dd 8.4, 16.2
8" 6.04 s
2''' 7.1 d 9
3''' 6.7 d 9
5''' 6.7 d 9
6''' 7.1 d 9

Carbon NMR Peaks

Position PPM
2 165
3 114.2
4 183.6
5 163.3
6 99.9
7 166
8 94.6
9 159.5
10 105
1' 126
2' 131.4
3' 115.6
4' 160.7
5' 115.6
6' 131.4
2" 82.8
3" 68.9
4"a 29.1
5" 154.8
6" 100.7
7" 156
8" 96.5
9" 157.8
10" 101.5
1''' 131.6
2''' 129.5
3''' 115.8
4''' 158.1
5''' 115.8
6''' 129.5