Garciniaflavone C

Garciniaflavone C

Common Name: Garciniaflavone C

Synonyms: 4H-​1-​Benzopyran-​4-​one, 8-​[6-​(5,​7-​dihydroxy-​4-​oxo-​4H-​1-​benzopyran-​2-​yl)​-​2,​2-​dimethyl-​2H-​1-​benzopyran-​8-​yl]​-​5,​7-​dihydroxy-​2-​(4-​hydroxyphenyl)​-

CAS Registry Number: 1622306-46-0

InChI:

InChIKey:

Formula: C35H24O10

Molecular Weight: 604.567

Exact Mass: 604.13695

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 6.89 s
6 6.21 d 2.4
8 6.49 d 2
2' 7.97 d 2.4
6' 7.93 d 2.4
3" 6.82 s
6" 6.42 s
2''' 7.58 d 8.8
3''' 6.7 d 8.8
5''' 6.7 d 8.8
6''' 7.58 d 8.8
1'''' 6.62 d 10
2'''' 5.86 d 10
4'''' 1.15 s
5'''' 1.31 s
5-OH 12.94 s
5"-OH 13.12 s

Carbon NMR Peaks

Position PPM
2 163.4
3 (signal overlaps with 10") 103.5
4 181.7
5 161.4
6 98.9
7 163.7
8 94.1
9 157.4
10 103.7
1' 122.3
2' 130.8
3' 120.6
4' 154.2
5' 121.3
6' 124.3
2" 163.6
3" 102.5
4" 182.1
5" 161
6" 98.5
7" 161.8
8" 103.1
9" 154.2
10" (signal overlaps with 3) 103.5
1''' 121.3
2''' 128.2
3''' 115.7
4''' 160.6
5''' 115.7
6''' 128.2
1'''' 121.3
2'''' 31.7
3'''' 77.7
4'''' 28.2
5'''' 28