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22,25-DIDEOXYECDYSONE

Year of first isolation: 1966
Formula:C27H44O4
Molecular weight:432
Occurence in plants:
 
Occurence in animals:
metabolite formed in insects and crustaceans » Images of metabolite formed in insects and crustaceans
22,25-DIDEOXYECDYSONE

STRUCTURE DESCRIPTORS

Canonical SMILESCC(C)CCCC(C)C1CCC2(C1(CCC3C2=CC(=O)C4C3(CC(C(C4)O)O)C)C)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@H](C)CCCC(C)C)O)C)C » JSMol: View in 3D
IUPAC Name(2S,3R,5R,9R,10R,13R,14S,17R)-2,3,14-trihydroxy-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,5,9,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-6-one
CAS-RN 
PubChem CID11224256
InChiKey
[ ChemIDPlus: search ]
QPGHAYOKHPQLQO-DXCOFLLLSA-N
InChIInChI=1S/C27H44O4/c1-16(2)7-6-8-17(3)18-10-12-27(31)20-13-22(28)21-14-23(29)24(30)15-25(21,4)19(20)9-11-26(18,27)5/h13,16-19,21,23-24,29-31H,6-12,14-15H2,1-5H3/t17-,18-,19+,21+,23-,24+,25-,26-,27-/m1/s1

MASS SPECTRUM

CI-MS (NH3) m/z 
EI-MS m/z (relative intensity %)432 (M)+(5), 414 (100), 404 (10), 399 (16), 396 (7), 381 (18), 302 (9), 301 (22), 249 (5), 213 (5)
HR-MS 

CARBON NMR

PROTON NMR

C5D5N
0137.9
0268.0
0368.0
0434.4
0551.3 $
06203.4
07121.5
08166.7
0934.5
1038.6
1120.9
1231.7 *
1347.2
1484.2
1531.4 *
1627.3
1751.1 $
1815.8
1924.3
2036.0 **
2119.2
2236.7 **
2324.3 L
2439.7
2528.1
2622.6 L
2722.8 L
C5D5N
01-Ha 
01-He 
02-Ha 
03-He 
04-Ha 
04-He 
05-H 
07-H 
09-Ha 
11-Ha 
11-He 
12-Ha 
12-He 
15-Ha 
15-Hb 
16-Ha 
16-Hb 
17-H 
18-Me0.71 0.75
19-Me1.07 1.08
21-Me1.00 (d, 6) 1.06-0.975
22-Ha 
22-Hb 
23-Ha 
23-Hb 
24-Ha 
24-Hb 
25-H 
26-Me0.85 (d, 6) 0.925-0.83
27-Me0.85 (d, 6) 0.925-0.83

PHYSICAL PROPERTIES

M.P.207-209 °C ;
[α]D20 
IR (KBr) ν max (cm-1)3540, 3380 (OH), 1656 (C=O), 1612 (C=C);
UV (EtOH) λ max (log ε)242 (4.086) ;

CHROMATOGRAPHY

HPTLC 
TLC 
GLC 
HPLC 

BIOLOGICAL ACTIVITIES

Drosophila melanogaster BII cell assay: EC50 = ca. 10-6M
Calliphora assay: 10% (20-hydroxyecdysone = 100%)
Musca assay: 17% (20-hydroxyecdysone = 100%)

REFERENCES

First isolationFURLENMEIER, A. et al. (1966) Helv. Chim. Acta 49, 1591-1601 Search more
GeneralHORN, D.H.S. et al. (1971) In: Marcel Dekker Inc., New York, pp. 333-459 Search more
GeneralKAPLANIS, J.N. et al. (1972) Steroids 20, 105-120 Search more
GeneralHIKINO, H. et al. (1975) Chem. Pharm. Bull. 23, 125-132 Search more
BioactivitiesBERGAMASCO, R. et al. (1980) In: Progress in Ecdysone Research (Ed. J.A. Hoffmann), Elsevier/North Holland Biomed. Press, Amsterdam 299-324 Search more
GeneralMEISTER, M.F. et al. (1985) Mol. Cell. Endocrinol. 41, 27-44 Search more
GeneralLACHAISE, F. et al. (1986) Mol. Cell. Endocrinol. 45, 253-261 Search more
BioactivitiesDINAN, L. et al. (1999) J. Computer-aided Mol. Design 13, 185-207 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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