Hegoflavone B

Hegoflavone B

Common Name: Hegoflavone B

Synonyms: 4H-1-Benzopyran-4-one, 6-[2-(5,7-dihydroxy-4-oxo-4H-1-benzopyran-2-yl)-4,5-dihydroxyphenyl]-2-(3,4-dihydroxyphenyl)-2,3-dihydro-5,7-dihydroxy-, (S)-

CAS Registry Number: 100288-21-9

InChI:

InChIKey:

Formula: C30H20O12

Molecular Weight: 572.478

Exact Mass: 572.0955

NMR Solvent: DMSO-d6

MHz:

Calibration:

NMR references: Wada, H., Satake, T., Murakami, T., Kojima, T., Saiki, Y., Chen, C. (1985). Chemische und Chemotaxonomische Untersuchungen der Pterophyten. LIX. Chemische Untersuchungen der Inhaltstoffe von Alsophila spinulosa Tryon. Chem. Pharm. Bull. 33, 4182-4187.

Species: Alsophila spinulosa - Wada, H., Satake, T., Murakami, T., Kojima, T., Saiki, Y., Chen, C. (1985). Chemische und Chemotaxonomische Untersuchungen der Pterophyten. LIX. Chemische Untersuchungen der Inhaltstoffe von Alsophila spinulosa Tryon. Chem. Pharm. Bull. 33, 4182-4187.

Notes: See Satake, T., Murakami, T., Yokote, N., Saiki, Y., Chen, C. (1985). Chem Pharm. Bull. 33, 4175. for NMR conditions.

Proton NMR Peaks

Position PPM Peak Type J (Hz)
2 5.35 dd 12, 2
8 6.1 s
2', 6' 6.74 brs
2', 6' 6.86 brs
3" 6 s
6" 5.95 d 3
8" 6.06 d 3
2''' 7.15 s
5''' 6.64 s

Carbon NMR Peaks

Position PPM
2 78.5
3 42.3
4 196.4
5 163.6
6 13.4
7 166
8 94.4
9 161.7
10 101.4
1' 129.3
2' 114.1
3' 145.1
4' 145.6
5' 114.3
6' 117.8
2" 166
3" 105.9
4" 181.2
5" 161.4
6" 98.6
7" 163.9
8" 93.3
9" 157.3
10" 103.4
1''' 123
2''' 115.3
3''' 144.6
4''' 147.8
5''' 119.8
6''' 123.8