Garciniaflavone A

Garciniaflavone A

Common Name: Garciniaflavone A

Synonyms: 4H-​1-​Benzopyran-​4-​one, 8-​[5-​(5,​7-​dihydroxy-​4-​oxo-​4H-​1-​benzopyran-​2-​yl)​-​2-​hydroxyphenyl]​-​5-​hydroxy-​2-​(4-​hydroxyphenyl)​-​7-​[(3-​methyl-​2-​buten-​1-​yl)​oxy]​-

CAS Registry Number: 1622306-44-8

InChI:

InChIKey:

Formula: C35H26O10

Molecular Weight: 606.583

Exact Mass: 606.1526

NMR Solvent: acetone-d6

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

Calibration: TMS

NMR references: Ito, T., Yokota, R., Watarai, T., Mori, K., Oyama, M., Nagasawa, H., Matsuda, H., Iinuma, M. (2013). Isolation of Six Isoprenylated Biflavonoids from the Leaves of Garcinia subelliptica. Chem Pharm. Bull. 61, 551-558.

Species: Garcinia subelliptica - Ito, T., Yokota, R., Watarai, T., Mori, K., Oyama, M., Nagasawa, H., Matsuda, H., Iinuma, M. (2013). Isolation of Six Isoprenylated Biflavonoids from the Leaves of Garcinia subelliptica. Chem Pharm. Bull. 61, 551-558.

Notes:

Proton NMR Peaks

Position PPM Peak Type J (Hz)
3 6.81 s
6 6.2 d 1.6
8 6.46 d 1.6
2' 8 br s
5' 7.16 d 8.4
6' 8.01 br d 8.4
3" 6.83 s
6" 6.66 s
2''' 7.6 d 7.6
3''' 6.74 d 7.6
5''' 6.74 d 7.6
6''' 7.6 d 7.6
1'''' 4.67 m
2'''' 5.33 m
4'''' 1.68 s
5'''' 1.68 s
5-OH 13 s
7-OH 10.82 s
4'-OH 10.34 s
5"-OH 13.24 s
4'''-OH 10.3 s

Carbon NMR Peaks

Position PPM
2 163.8
3 102.6
4 181.7
5 161.4
6 98.8
7 164.1
8 94
9 153.7
10 103.7
1' 120.9
2' 131.4
3' 119.6
4' 159.4
5' 116.1
6' 127.9
2" 164
3" 102.6
4" 182.3
5" (interchangeable with 4''') 161.1
6" 96.5
7" 161.9
8" 105.2
9" 157.4
10" 104.1
1''' 121.3
2''' 128.3
3''' 115.8
4''' (interchangeable with 5") 161.2
5''' 115.8
6''' 128.3
1'''' 65.7
2'''' 119.2
3'''' 137.8
4'''' 18.1
5'''' 25.4