Garciniaflavone F

Garciniaflavone F

Common Name: Garciniaflavone F

Synonyms: 2H,​8H-​Benzo[1,​2-​b:3,​4-​b']​dipyran-​4-​one, 3-​[2-​(3,​4-​dihydroxyphenyl)​-​5,​7-​dihydroxy-​4-​oxo-​4H-​1-​benzopyran-​8-​yl]​-​2,​3,​9,​10-​tetrahydro-​5-​hydroxy-​2-​(4-​hydroxyphenyl)​-​8,​8-​dimethyl-​, (2R,​3S)​-

CAS Registry Number: 1622306-49-3

InChI:

InChIKey:

Formula: C35H28O11

Molecular Weight: 624.598

Exact Mass: 624.1632

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)
2 5.78 d 12.2
3 4.9 d 12.2
6 5.93 s
2' 7.17 d 8.4
3' 6.41 d 8.4
5' 6.41 d 8.4
6' 7.17 d 8.4
3" 6.57 s
6" 6.23 s
2''' 7.41 br s
5''' 6.91 d 8
6''' 7.43 br d 8
1'''' 2.5 m
2'''' 1.75 m
4'''' 1.31 s
5'''' 1.32 s
5-OH 12.03 s
5"-OH 13.09 s
2 5.61 d 12.2
3 5 d 12.2
6 5.98 s
2' 7.12 d 8.6
3' 6.62 d 8.6
5' 6.62 d 8.6
6' 7.12 d 8.6
3" 6.61 s
6" 6.07 s
2''' 7.23 br s
5''' 6.96 d 8.6
6''' 6.5 br d 8.6
1'''' 2.5 br s
2'''' 1.75 m
4'''' 1.31 s
5'''' 1.32 s
5-OH 11.98 s
5"-OH 12.99 s

Carbon NMR Peaks

Position PPM
2 81
3 48.2
4 196.7
5 160.5
6 96.6
7 162
8 100.7
9 159.8
10 101.8
1' 128.4
2' 128.3
3' 114.4
4' 157.3
5' 114.4
6' 128.3
2" 163.4
3" 102.2
4" 181.6
5" 160.9
6" 98.7
7" 162
8" 100.6
9" 155.3
10" 103
1''' 121.1
2''' 119.3
3''' 145.6
4''' 149.6
5''' 116.1
6''' 113.3
1'''' 16
2'''' 31.2
3'''' 76.2
4'''' 26.1
5'''' 26.8
2 81.1
3 47.4
4 196.8
5 160.7
6 96.7
7 (signal overlaps with 7") 162.1
8 100.7
9 160
10 101.9
1' (signal overlaps with 2', 6') 128.7
2' (signal overlaps with 1', 6') 128.7
3' 114.6
4' 157.4
5' 114.6
6' (signal overlaps with 1', 2') 128.7
2" 163.4
3" 102.3
4" 181.7
5" 161.1
6" 98.8
7" (signal overlaps with 7) 162.1
8" 100.6
9" 155.4
10" 103.1
1''' 121.1
2''' 119.3
3''' 145.9
4''' 149.8
5''' 116.2
6''' 113.4
1'''' 15
2'''' 31.2
3'''' 76.3
4'''' 26.1
5'''' 26.8