Common Name: 2H-Furo[2,3-h]-1-benzopyran, 8,9-dihydro-5-methoxy-8-(1-methylethenyl)-2-phenyl-3-[2,3, 7,8-tetrahydro-4-methoxy-7-(1-methylethenyl)-2-(phenylmethyl) benzo[1,2-b:3,4-b']difuran-3-yl]- (9CI)
Synonyms:
CAS Registry Number: 260437-88-5
InChI:
InChIKey:
Formula: C42H40O6
Molecular Weight: 640.776
Exact Mass: 640.2825
NMR Solvent: CDCl3
MHz: 200.0
Calibration: not indicated
NMR references: Gomez-Garibay, F., Calderon, J., De La O Arciniega, M., Cespedes, C., Tellez-Valdes, O., Taboada, J. (1999). An unusual isopropenyldihydrofuran biflavanol from Tephrosia crassifolia. Phytochemistry 52, 1159-1163.
Species: synthesis - Gomez-Garibay, F., Calderon, J., De La O Arciniega, M., Cespedes, C., Tellez-Valdes, O., Taboada, J. (1999). An unusual isopropenyldihydrofuran biflavanol from Tephrosia crassifolia. Phytochemistry 52, 1159-1163.
Notes:
Position | PPM | Peak Type | J (Hz) |
---|---|---|---|
13" | 1.61 | br s | |
13 | 1.79 | br s | |
9"α | 2.65 | dd | 15, 10 |
9α | 2.95 | dd | 15, 10 |
9"β | 3.12 | dd | 15, 9 |
9β | 3.3 | dd | 18, 9 |
2", 4" | 3.65 | m | |
OCH3 | 3.68 | s | |
OCH3 | 3.73 | s | |
12 | 4.79 | br | |
12 | 4.98 | s | |
12" | 4.89 | br | |
12'' | 5.08 | s | |
10" | 5.04 | t | 10 |
3" | 5.13 | m | |
10 | 5.24 | t | 9 |
2 | 5.76 | s | |
6 | 5.99 | s | |
6" | 6.06 | s | |
4 | 6.38 | s | |
2''' | 6.95 | m | |
3''', 4''', 5''' | 7.18 | m | |
3', 4', 5' | 7.29 | m | |
2', 6' | 7.44 | m |