trimethoxy lophirone A

trimethoxy lophirone A

Common Name: trimethoxy lophirone A

Synonyms:

CAS Registry Number:

InChI:

InChIKey:

Formula: C33H28O8

Molecular Weight: 552.579

Exact Mass: 552.1784

NMR Solvent: CDCl3

MHz: 600 MHz (1H), 125 MHz (13C)

Calibration: residual solvent peaks

NMR references: Abdullahi, M., Musa, A., Haruna, A., Pateh, U., Sule, I., Abdulmalik, I., Abdullahi, M., Abimiku, A., Illiya, I. (2014) Isolation and characterization of an anti-microbial biflavonoid from the chloroform-soluble fraction of methanolic root extract of Ochna schweinfurthiana (Ochnaceae). Afr. J. Pharm. Pharmacol. 8, 93-99.

Species: Ochna schweinfurthiana

Notes: stereochemistry not indicated

Proton NMR Peaks

Position PPM Peak Type J (Hz)
3 6.7 d 2.22
5 6.77 dd 2.22, 8.6
6 7.93 d 8.94
γ2 8.06 s
3' 6.24 d 2.34
5' 6.39 dd 2.34, 9.1
6' 8.17 d 9.1
γ1 6.07 d 12.12
β1 4.69 d 12.12
2'' 7.22 d 8.7
3'' 6.64 d 8.7
5'' 6.64 d 8.7
6'' 7.22 d 8.7
2''' 7.19 d 8.52
3''' 6.68 d 8.52
5''' 6.68 d 8.52
6''' 7.19 d 8.52
OH 12.62 s
2-OCH3 3.72 s
4"-OCH3 3.66 s
4"-OCH3 3.6 s

Carbon NMR Peaks

Position PPM
1 117.1
2 157.7
3 114.02
4 161.1
5 115.06
6 127.94
α2 175.28
β2 121.19
γ2 155.26
1' 113.7
2' 166.8
3' 100.83
4' 165.8
5' 107.96
6' 132.67
α1 203.49
γ1 43.04
β1 52.97
1'' 135.28
2'' 129.12
3'' 113.87
4'' 157.99
5'' 113.87
6'' 129.12
1''' 134.16
2''' 128.43
3''' 113.92
4''' 157.91
5''' 113.92
6''' 128.43
2-OCH3 55.53
4"-OCH3 55.13
4"-OCH3 55.06