Lophirone L penta-acetate

Lophirone L penta-acetate

Common Name: Lophirone L penta-acetate

Synonyms: 2-(4-acetoxy-3-((5-acetoxy-3-(4-acetoxyphenyl)-4-oxo-4H-chromen-7-yl)oxy)phenyl)-4-oxo-4H-chromene-5,7-diyl diacetate

CAS Registry Number: 1025991-72-3

InChI:

InChIKey:

Formula: C40H28O15

Molecular Weight: 748.65

Exact Mass: 748.1428

NMR Solvent: acetone-d6

MHz: 400.0

Calibration: TMS

NMR references: Tih, A., Ghogomu, R., Sondengam, B., Caux, C., Bodo, B. (2006). Minor Biflavonoids from Lophira alata Leaves. J. Nat. Prod. 69, 1206-1208.

Species: synthesis - Tih, A., Ghogomu, R., Sondengam, B., Caux, C., Bodo, B. (2006). Minor Biflavonoids from Lophira alata Leaves. J. Nat. Prod. 69, 1206-1208.

Notes:

Proton NMR Peaks

Position PPM Peak Type J (Hz)
2 6.79 s
6 6.56 d 2.2
8 6.82 d 2.2
2' 7.1 d 2.4
5' 7.19 d 8.8
6' 8.15 dd 8.4, 2.4
2" 8.39 s
6" 6.48 d 2.1
8" 6.51 d 2.1
2''', 6''' 7.5 d 8.5
3''', 5''' 8.25 not indicated 8.5
CH3CO 2.35 s
2x CH3CO 2.34 s
CH3CO 2.33 s
CH3CO 2.22 s