Ephedrannin A

Ephedrannin A

Common Name: Ephedrannin A

Synonyms: 8,​14-​Methano-​4H,​14H-​1-​benzopyrano[7,​8-​d]​[1,​3]​benzodioxocin-​4-​one, 3,​5,​11,​13,​15-​pentahydroxy-​2,​8-​bis(4-​hydroxyphenyl)​-​, (8R,​14S,​15S)​-

CAS Registry Number: 82001-39-6

InChI:

InChIKey:

Formula: C30H20O11

Molecular Weight: 556.479

Exact Mass: 556.1006

NMR Solvent: acetone-d6

MHz: 500 (1H), 125 (13C)

Calibration: not indicated

NMR references: Xu, M., Shen, L., Wang, K. (2009). A new biflavonoid from Daphniphyllum angustifolium Hutch. Fitoterapia 80, 461-464.

Species: Daphniphyllum angustifolium - Xu, M., Shen, L., Wang, K. (2009). A new biflavonoid from Daphniphyllum angustifolium Hutch. Fitoterapia 80, 461-464.

Notes:

Proton NMR Peaks

Position PPM Peak Type J (Hz)
3 4.12 s
4 4.78 d 0.3
6 5.95 d 0.25
8 5.9 d 0.2
2' 7.4 d 9
3' 6.8 d 9
5' 6.8 d 9
6' 7.4 d 9
6" 6.32 s
2''' 8.4 d 9
3''' 6.9 d 9
5''' 6.9 d 9
6''' 8.4 d 9

Carbon NMR Peaks

Position PPM
2 100.8
3 66.5
4 29.2
5 152.3
6 97.5
7 153.8
8 95.6
9 158.2
10 105.7
1' 130.6
2' 129.4
3' 115.8
4' 160
5' 115.8
6' 129.4
2" 148.8
3" 137.2
4" 177.4
5" 158
6" 99.1
7" 159.1
8" 102.5
9" 159.1
10" 107.7
1''' 123.3
2''' 131.5
3''' 116.7
4''' 160.7
5''' 116.7
6''' 131.5