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BRAINESTEROSIDE E

Year of first report:2010
Formula:C33H54O11
Molecular weight:626
Occurence in plants:
Brainea insignis [Ferns] » Images of Brainea insignis
Occurence in animals:
 
BRAINESTEROSIDE E

MASS SPECTRUM

ESI-MS (positive) m/z627 [M+H]+, 649 [M+Na]+
ESI-MS (negative) m/z625 [M-H]-, 661 [M+Cl]-

CARBON NMR

PROTON NMR

DMSO-d6
0141.9
0267.2
0377.7
0420.2
0553.1
06199.2
07121.5
08164.4
0946.1
1037.8
1120.0
1230.7
1346.6
1482.7
1530.2
1620.1
1748.7
1817.0
1915.1
2075.6
2120.8
2275.5
2329.1
2436.1
2527.4
2622.2
2723.0
[sugar] 1'100.2
[sugar] 2'73.5
[sugar] 3'76.3
[sugar] 4'70.0
[sugar] 5'76.7
[sugar] 6'61.0
DMSO-d6
01-Ha1.44 (m)
01-He1.90 (m)
02-He3.92 (br, s)
03-Ha3.63 (m)
04-Ha1.92 (m)
04-He1.51 (m)
05-H2.22 (dd, 3.3, 12.0)
07-H5.69 (d, 2.4)
09-H2.62 (m)
11-Ha1.48 (m)
11-He1.62 (m)
12-Ha1.66 (m)
12-He1.98 (m)
15-Ha1.77(m)
15-Hb1.51 (m)
16-Ha1.52 (m)
16-Hb1.91 (m)
17-H2.20 (t, 9.2)
18-Me0.75 (s)
19-Me0.89 (s)
21-Me1.04 (s)
22-H3.12 (m)
23-Ha1.35 (m)
23-Hb1.06 (m)
24-Ha1.36 (m)
24-Hb1.13 (m)
25-H1.49 (m)
26-Me0.84 (d, 6.8)
27-Me0.85 (d, 6.8)
[sugar] 1'4.29 (d, 7.8)
[sugar] 2'2.97 (m)
[sugar] 3'3.13 (m)
[sugar] 4'3.04 (m)
[sugar] 5'3.09 (m)
[sugar] 6'a3.61 (m)
[sugar] 6'b3.40 (m)

PHYSICAL PROPERTIES

M.P.░C ;
[α]D20+ 22.1 ░ (c 0.26; MeOH)
IR (KBr) ν max (cm-1)
UV (EtOH) λ max (log ε)245 (4.10) ;

CHROMATOGRAPHY

HPLC
GLC
HPTLC
TLC

BIOLOGICAL ACTIVITIES

 

REFERENCES

First isolationWU, P. et al. (2010) Phytochemistry 71, 975-981 Search more

see Important notice
© UniversitÚ Pierre & Marie Curie, Paris 6, France
© Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Prague, Czech Republic
© Institut National de la Recherche Agronomique, Versailles, France
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