Wikstaiwanone C

Wikstaiwanone C

Common Name: Wikstaiwanone C

Synonyms: [3,​3'-​Bi-​4H-​1-​benzopyran]​-​4,​4'-​dione, 2,​2',​3,​3'-​tetrahydro-​5,​5',​7,​7'-​tetrahydroxy-​2-​(4-​ hydroxyphenyl)​-​2'-​(4-​methoxyphenyl)​-​, (2R,​2'R,​3S,​3'S)​-

CAS Registry Number: 1417071-34-1

InChI:

InChIKey:

Formula: C31H24O10

Molecular Weight: 556.52

Exact Mass: 556.13695

NMR Solvent: DMSO-d6

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)
2 5.7 d 12
3 2.6 dd 12, 18
6 5.46 br d
8 5.54 s
2' 6.95 d 8
3' 6.87 d 8
5' 6.87 d 8
6' 6.95 d 8
2" 5.64 d 12
3" 2.6 dd 12, 18
6" 5.46 br d
8" 5.54 s
2''' 6.78 d 8
3''' 6.7 d 8
5''' 6.7 d 8
6''' 6.78 d 8
OCH3 3.79 s

Carbon NMR Peaks

Position PPM
2 82.3
3 48.5
4 193
5 161.8
6 96.7
7 161.9
8 97.5
9 163.5
10 99
1' 128.9
2' 129.1
3' 113.8
4' 159.6
5' 113.8
6' 129.1
2" 82.5
3" 48.6
4" 193
5" 161.8
6" 96.6
7" 161.9
8" 97.6
9" 163.5
10" 99.1
1''' 127.1
2''' 128.9
3''' 115.3
4''' 158
5''' 115.3
6''' 128.9
OCH3 55.1