Lophirone L

Lophirone L

Common Name: Lophirone L

Synonyms: 4H-​1-​Benzopyran-​4-​one, 5,​7-​dihydroxy-​2-​[4-​hydroxy-​3-​[[5-​hydroxy-​3-​(4-​hydroxyphenyl)​-​4-​oxo-​4H-​1-​benzopyran-​7-​yl]​oxy]​phenyl]​-

CAS Registry Number: 908569-90-4

InChI:

InChIKey:

Formula: C30H18O10

Molecular Weight: 538.46

Exact Mass: 538.09

NMR Solvent: acetone-d6

MHz: 400 (1H), 100 (13C)

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

Notes: NMR data can be found in the supporting information.

Proton NMR Peaks

Position PPM Peak Type J (Hz)
3 6.75 s
6 6.25 d 2.1
8 6.53 d 2.1
2' 8.14 d 2.4
5' 6.9 d 8.8
6' 8.03 dd 2.4, 8.8
2" 8.35 s
6" 6.29 d 2.1
8" 6.45 d 2.1
2''', 6''' 7.02 d 8.9
3''', 5''' 6.88 d 8.9
5-OH 12.92
5"-OH 12.82

Carbon NMR Peaks

Position PPM
2 165
3 105.1
4 183
10 105.2
5 162.9
6 99.8
7 163.1
8 94.8
9 158.9
1' 129
2' 131
3' 144.8
4' 149.1
5' 116
6' 129.1
2" 156.1
3" 122.2
4" 181
10" 106
5" 164.4
6" 100
7" 165.1
8" 94.9
9" 159.2
1''' 127.2
2''', 6''' 122
3''', 5''' 117
4''' 156