Common Name: (2S,3R)-4',5,7-tri-O-methyldihydrogenistein-(2α→7)-(2S)-2,4,4',6-tetra-O-methylmaesopsin
Synonyms: 4H-1-Benzopyran-4-one, 2-[(2S)-2,3-dihydro- 2,4,6-trimethoxy-2-[(4-methoxyphenyl)methyl]-3-oxo-7- benzofuranyl]-2,3-dihydro-5,7-dimethoxy-3-(4-methoxyphenyl)- , (2S,3R)-
CAS Registry Number: 247589-31-7
InChI:
InChIKey:
Formula: C37H36O11
Molecular Weight: 656.68
Exact Mass: 656.2258
NMR Solvent: CDCl3
MHz: not indicated
Calibration: TMS
NMR references: Bekker, R., Brandt, E., Ferreira, D. (1999). Biflavonoids. Part 4. Structure and Stereochemistry of Novel Flavanone- and the First Isoflavanone-benzofuranone Biflavonoids. Tetrahedron 55, 10005-10012.
Species: synthesis - Bekker, R., Brandt, E., Ferreira, D. (1999). Biflavonoids. Part 4. Structure and Stereochemistry of Novel Flavanone- and the First Isoflavanone-benzofuranone Biflavonoids. Tetrahedron 55, 10005-10012.
Notes: 1H NMR spectra recorded on a Bruker AM-300 spectrometer. Only 1H NMR performed by Bekker et al. Labeling of atoms differs here than in Bekker et al.
Position | PPM | Peak Type | J (Hz) |
---|---|---|---|
6 (may be interchanged with 8) | 6.05 | d | 2 |
8 (may be interchanged with 6) | 6 | d | 2 |
2', 6' | 7.38 | d | 8.5 |
3', 5' | 6.82 | d | 8.5 |
2 | 5.62 | d | 10.5 |
3 | 4.62 | d | 10.5 |
5" | 5.95 | s | |
2''', 6''' | 7.15 | d | 8.5 |
3''', 5''' | 6.62 | d | 8.5 |
10" | 3.19 | d | 14, 14 |
10" | 3.06 | d | |
2"-OCH3 | 3.19 | s | |
OCH3 | 3.92 | s | |
OCH3 | 3.88 | s | |
OCH3 | 3.88 | s | |
OCH3 | 3.82 | s | |
OCH3 | 3.79 | s | |
OCH3 | 3.71 | s |