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SILENEOSIDE A

Year of first isolation: 1981
Formula:C33H54O12
Molecular weight:642
Occurence in plants:
Silene brahuica [Caryophyllaceae] » Images of Silene brahuica Wikipedia: Silene brahuica [Caryophyllaceae]
Occurence in animals:
 
SILENEOSIDE A

STRUCTURE DESCRIPTORS

Canonical SMILESCC12CCC3C(=CC(=O)C4C3(CC(C(C4)O)O)C)C1(CCC2C(C)(C(CCC(C)(C)O)OC5C(C(C(C(O5)CO)O)O)O)O)O
Isomeric SMILES
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C1[C@]2([C@@H](C[C@H]([C@H]1O)O)C(=O)C=C1[C@@H]2CC[C@]2([C@]1(CC[C@@H]2[C@](C)([C@@H](CCC(C)(C)O)O[C@@H]1C(C([C@H](C(O1)CO)O)O)O)O)O)C)C » JSMol: View in 3D
IUPAC Name(2R,3R,5R,9R,10R,13R,17S)-17-[(2R,3R)-2,6-dihydroxy-6-methyl-3-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyheptan-2-yl]-2,3,14-trihydroxy-10,13-dimethyl-2,3,4,5,9,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-6-one
CAS-RN81655-86-9
PubChem CID196202
InChiKey
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OYLAWXRQIJWVHG-PRYDOBOQSA-N
InChIInChI=1S/C33H54O12/c1-29(2,41)9-8-24(45-28-27(40)26(39)25(38)22(15-34)44-28)32(5,42)23-7-11-33(43)17-12-19(35)18-13-20(36)21(37)14-30(18,3)16(17)6-10-31(23,33)4/h12,16,18,20-28,34,36-43H,6-11,13-15H2,1-5H3/t16-,18-,20+,21+,22+,23-,24+,25-,26-,27+,28+,30+,31+,32+,33?/m0/s1

MASS SPECTRUM

CI-MS (NH3) m/z 
EI-MS m/z (relative intensity %)623 (M-18)+ (0.3), 606 (0.8), 588 (0.5), 570 (0.2), 489 (1.1), 473 (2.0), 463 (2.2), 455 (3.8), 445 (5), 444 (4), 427 (34), 426 (35), 409 (12), 408 (11), 393 (3.8), 363 (3.7), 358 (5), 352 (17), 345 (100), 344 (94), 327 (67), 309 (22), 300 (34), 163 (20), 145 (22), 142 (33), 99 (66), 81 (44), 69 (42).
HR-MS 

CARBON NMR

PROTON NMR

C5D5N
01 
02 
03 
04 
05 
06 
07 
08 
09 
10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20 
21 
22 
23 
24 
25 
26 
27 
C5D5N
01-Ha 
01-He 
02-Ha4.0-4.2
03-He4.0-4.2
04-Ha 
04-He 
05-H 
07-H6.11
09-Ha3.42
11-Ha 
11-He 
12-Ha 
12-He 
14-H 
15-Ha 
15-Hb 
16-Ha 
16-Hb 
17-H 
18-Me1.09
19-Me0.90
21-Me1.49
22-H3.59
23-Ha 
23-Hb 
24-Ha 
24-Hb 
26-Me1.24
27-Me1.30

PHYSICAL PROPERTIES

M.P.254-256 °C
[α]D22+ 93.1 ? 2 ° (c 1.02; MeOH)
IR (KBr) ν max (cm-1)3370-3440 (OH), 1645 (cyclohexenone)
UV (EtOH) λ max (log ε)246 (4.15)

CHROMATOGRAPHY

HPTLC 
TLC 
GLC 
HPLC 

BIOLOGICAL ACTIVITIES

Drosophila melanogaster BII cell assay: EC50 = 4.1 x 10-5M

REFERENCES

First isolationSAATOV, Z. et al. (1981) Khim. Prir. Soedin., 738-744 Search more
BioactivitiesDINAN, L. et al. (2005) In: Comprehensive Molecular Insect Science (eds. L. I. Gilbert, C. Iatrou, S. Gill), Elsevier, Oxford, III, 197-242 Search more

see Important notice
© Université 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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