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20-HYDROXYECDYSONE 2,3;20,22-DIACETONIDE

Year of first isolation: 1994
Formula:C33H52O7
Molecular weight:560
Occurence in plants:
Leuzea carthamoides [Asteraceae] » Images of Leuzea carthamoides Wikipedia: Leuzea carthamoides [Asteraceae]
Occurence in animals:
 
20-HYDROXYECDYSONE 2,3;20,22-DIACETONIDE

STRUCTURE DESCRIPTORS

Canonical SMILESCC1(OC2CC3C(=O)C=C4C(C3(CC2O1)C)CCC5(C4(CCC5C6(C(OC(O6)(C)C)CCC(C)(C)O)C)O)C)C
Isomeric SMILES
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C1[C@]2([C@@H](C[C@@H]3[C@H]1OC(O3)(C)C)C(=O)C=C1[C@@H]2CC[C@]2([C@]1(CC[C@@H]2[C@]1(C)[C@@H](CCC(C)(C)O)OC(O1)(C)C)O)C)C » JSMol: View in 3D
IUPAC Name(1R,2R,4S,8R,10R,14S,17S,18R)-14-hydroxy-17-[(4R,5R)-5-(3-hydroxy-3-methylbutyl)-2,2,4-trimethyl-1,3-dioxolan-4-yl]-2,6,6,18-tetramethyl-5,7-dioxapentacyclo[11.7.0.02,10.04,8.014,18]icos-12-en-11-one
CAS-RN22798-98-7
PubChem CID11082278
InChiKey
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WXFMGCVRGSIXOB-APTIWFLNSA-N
InChIInChI=1S/C33H52O7/c1-27(2,35)13-12-26-32(9,40-29(5,6)39-26)25-11-15-33(36)20-16-22(34)21-17-23-24(38-28(3,4)37-23)18-30(21,7)19(20)10-14-31(25,33)8/h16,19,21,23-26,35-36H,10-15,17-18H2,1-9H3/t19-,21-,23+,24-,25-,26+,30+,31+,32+,33+/m0/s1

MASS SPECTRUM

CI-MS (NH3) m/z 
EI-MS m/z (relative intensity %)560 (1), 545 (12), 527 (10), 509 (5), 403 (100), 385 (25), 341 (20)
FAB-MS m/z583 (M+Na)+ (20), 561 (M+H)+ (20), 543 (25), 485 (M+H-H2O-acetone) (28), 427 (10)

CARBON NMR

PROTON NMR

CD3OD
0138.72
0273.50
0373.13
0427.69
0552.47
06205.59
07121.80
08166.88
0935.77
1038.84
1121.60
1232.30
13*
1485.23
1531.60
1622.44
1750.48
1817.67
1924.01
2085.83
2122.60
2283.30
2324.70
2442.21
2571.10
2629.50
2729.35
iPr- (2,3)109.45, 28.82, 26.64
iPr- (20,22)108.00, 28.96, 27.18
CD3COCD3
01-Ha 
01-Hb 
02-Ha4.23 (m )
03-He4.25 (m )
04-Ha 
04-He 
05-H 
07-H5.71 (d, 2.7)
09-Ha2.96 (ddd, 12.0, 7.0, 2.7)
11-Ha 
11-He 
12-Ha 
12-He 
15-Ha 
15-Hb 
16-Ha 
16-Hb 
17-H2.37 (dd, 9.0, 8.5)
18-Me0.825 (s )
19-Me0.952 (s )
21-Me1.182 (s )
22-H3.68 (dd, 7.0, 5.5)
23-Ha 
23-Hb 
24-Ha 
24-Hb 
26-Me1.176 (s )
27-Me1.167 (s )
iPr- (2,3)1.423 (s), 1.254 (s)
iPr- 20,221.361 (s), 1.297 (s)

PHYSICAL PROPERTIES

M.P. 
[α]D20 
IR (KBr) ν max (cm-1)3449 (OH), 1664 (=C=O), 1381, 1373 (gem-diMe), 1169, 1059
UV (EtOH) λ max (log ε) 

CHROMATOGRAPHY

HPTLC 
TLC 
GLC 
NP-HPLC(Separon SGX silica 7 ?m) (CH2Cl2-MeOH-H2O 88:11:1)

BIOLOGICAL ACTIVITIES

 

REFERENCES

First isolationPIS, J. et al. (1994) Phytochemistry 37, 707-711 Search more
GeneralSUKSAMRARN, A. et al. (1995) Tetrahedron 51, 10633-10650 Search more

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© 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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