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2-DEOXY-20-HYDROXYECDYSONE

Year of first isolation: 1968
Formula:C27H44O6
Molecular weight:464
Occurence in plants:
Blechnum minus [Blechnaceae] » Images of Blechnum minus Wikipedia: Blechnum minus [Blechnaceae]
Occurence in animals:
Jasus lalandii [Crustaceae] » Images of Jasus lalandii Wikipedia: Jasus lalandii [Crustaceae]
Schistocerca gregaria [Orthoptera] » Images of Schistocerca gregaria Wikipedia: Schistocerca gregaria [Orthoptera]
Zoanthus sp. [Zoanthidae] » Images of Zoanthus sp. Wikipedia: Zoanthus sp. [Zoanthidae]
2-DEOXY-20-HYDROXYECDYSONE

STRUCTURE DESCRIPTORS

Canonical SMILESCC12CCC(CC1C(=O)C=C3C2CCC4(C3(CCC4C(C)(C(CCC(C)(C)O)O)O)O)C)O
Isomeric SMILES
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[ ChemSpider: search ]
C1[C@]2([C@@H](C[C@H](C1)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)O)O)C)C » JSMol: View in 3D
IUPAC Name(3S,5R,9R,10R,13R,14S,17S)-3,14-dihydroxy-10,13-dimethyl-17-[(2R,3R)-2,3,6-trihydroxy-6-methylheptan-2-yl]-2,3,4,5,9,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-6-one
CAS-RN17942-08-4
PubChem CID9912297
InChiKey
[ ChemIDPlus: search ]
JNTQSSGVHLUIBL-GLPVALQZSA-N
InChIInChI=1S/C27H44O6/c1-23(2,31)10-9-22(30)26(5,32)21-8-13-27(33)18-15-20(29)19-14-16(28)6-11-24(19,3)17(18)7-12-25(21,27)4/h15-17,19,21-22,28,30-33H,6-14H2,1-5H3/t16-,17-,19-,21-,22+,24+,25+,26+,27+/m0/s1

MASS SPECTRUM

CI-MS (isobutane) m/z465 (M+H)+ (6%); CI-MS (NH3) m/z 465 (M+H)+, 447, 429, 411, 347, 331, 329, 313
EI-MS m/z (relative intensity %)428 (M-2x18)+ (0.5), 397 (2), 347 (M-C22-C27)+ (9), 284 (M-C20-C27-18)+ (6), 99 (17), 81 (34), 43 (100)
HR-MS 

CARBON NMR

PROTON NMR

C5D5N
0129.5 (t)
0227.5 (t)
0364.12 (d)
0433.2 (t)
0551.75 (d)
06203.18 (s)
07121.5 (d)
08166.7 (s)
0934.3 (d)
1037.0 (s)
1121.7 (t)
1232.31 (t)
1348.59 (s)
1484.42 (s)
1531.63 (t)
1621.7 (t)
1750.17 (d)
1817.9 (q)
1924.38 (q)
2076.9 (s)
2121.57 (q)
2277.6 (d)
2329.12 (t)
2442.63 (t)
2569.58 (s)
2630.1 (q)*
2730.04 (q)*
CD3OD
0128.32
0225.66
0364.04
0431.87
0550.60
06205.6
07120.8
08167.0
0933.5
1036.3
1120.14
1231.2
1349.45
1484.3
1530.45
1620.14
1748.88
1817.0
1923.5
2076.56
2120.06
2276.76
2327.5
2440.66
2570.34
2628.61
2728.61
C5D5N
01-Ha 
01-He 
02-Ha 
02-He 
03-He4.12 (br, s)
04-Ha 
04-He 
05-H2.97 (m)
07-H6.25 (d, 2.1)
09-Ha3.54 (m)
11-Ha 
11-He 
12-Ha 
12-He 
15-Ha 
15-Hb 
16-Ha 
16-Hb 
17-H3.03 (t, 9)
18-Me1.23 (s )
19-Me1.05 (s )
21-Me1.60 (s )
22-H3.88 (br, d, 10.3)
23-Ha 
23-Hb 
24-Ha 
24-Hb 
26-Me1.36 (s )
27-Me1.36 (s )
CD3OD
01-Ha 
01-He 
02-Ha 
02-He 
03-He3.96 (m, w1/2=12)
04-Ha 
04-He 
05-H2.38 (dd, 12, 5)
07-H5.80 (d, 2.5)
09-Ha3.20 (m, w1/2=22)
11-Ha 
11-He 
12-Ha2.13 (ddd, 13, 13, 5)
12-He 
15-Ha 
15-Hb 
16-Ha 
16-Hb 
17-H2.39 (m )
18-Me0.89 (s )
19-Me0.96 (s )
21-Me1.19 (s )
22-H3.33 (dd, 11, 2)
23-Ha 
23-Hb 
24-Ha 
24-Hb 
26-Me1.19 (s )
27-Me1.20 (s )

PHYSICAL PROPERTIES

M.P.250-252 °C ;
[α]D20 
IR (KBr) ν max (cm-1)3450 (OH), 1645 (cyclohexenone);
UV (EtOH) λ max (log ε)243 (4.083) ;

CHROMATOGRAPHY

TLCNP-TLC : Rf 0.51 (silica plates, solvent CHCl3-MeOH 4:1 v/v) (E : 0.39); Rf 0.15 (silica plates, solvent CHCl3-96%EtOH 4:1 v/v) (E : 0.21); RP-TLC : Rf 0.28 (C18-bonded silica gel, solvent MeOH-H2O 65:35) (E : 0.35)
GLCas TMS ethers on 1.5% OV101, 285°C, derivat. 5h at 120°C, Ret 8.5 min (E : 6.5 min)
HPLCNP-HPLC, Retention time 9.4 min [Zorbax-Sil 250 mm x 4.6 mm i.d., solvent CH2Cl2-iPrOH-H2O 125:40:3 v/v/v, flow-rate 1 ml.min-1] (20E : 16.8 min); Retention time 17.2 min [Zorbax-Sil 250 mm x 4.6 mm i.d., solvent CH2Cl2-iPrOH-H2O 125:25:2 v/v/v, flow-rate 1 ml.min-1] (20E 37.4 min) RP-HPLC, Retention time 12.9 min [Spherisorb-5ODS2 250 mm x 4.6 mm i.d., solvent CH3CN- 0.1% TFA in H2O 23:77 v/v, flow-rate 1 ml.min-1] (20E 5.5 min)

BIOLOGICAL ACTIVITIES

Drosophila melanogaster BII cell assay: EC50 = 6.6 x 10-7M
Drosophila melanogaster BII cell assay: EC50 = 1.3 x 10-6M
Drosophila melanogaster Kc-H cell assay: EC50 = 4.7 x 10-7M
Galleria mellonella in vivo assay: ED50 = 12.5 ug/g
Sarcophaga bullata in vivo assay: ED50 = 26.0 ug/g
Calliphora assay: 100% (20-hydroxyecdysone = 100%)

REFERENCES

First isolationGALBRAITH, M.N. et al. (1968) J. Chem. Soc., Chem. Commun. 83-85 Search more
GeneralCHONG, Y.K. et al. (1970) J. Chem. Soc., Chem. Commun. 1217-1218 Search more
BioactivitiesCHERBAS, L. et al. (1980) W. Roux Arch. Devel. Biol. 189, 1-15 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
GeneralISAAC, R.E. et al. (1981) J. Chem. Soc., Chem. Commun. 418-420 Search more
GeneralWILSON, I.D. et al. (1985) J. Chromatogr. 318, 373-377 Search more
GeneralBIELBY, C.R. et al. (1986) J. Chromatogr. 351, 57-64 Search more
GeneralKAMETANI, T. et al. (1986) J. Org. Chem. 51, 2932-2939 Search more
BioactivitiesSLÁMA, K. et al. (1993) Insect Biochem. Molec. Biol. 23, 181-185 Search more
GeneralSUKSAMRARN, A. et al. (1996) Tetrahedron 52, 12623-12630 Search more
BioactivitiesDINAN, L. et al. (1999) J. Computer-aided Mol. Design 13, 185-207 Search more
GeneralPARAMESWARAN, P.S. et al. (2001) J. Indian Inst. Sci. 81, 169-173 Search more
BioactivitiesDINAN, L. et al. (2003) In: Studies in Natural Products Chemisty (ed. Atta-ur-Rahman), Elsevier, Amsterdam, 29, 3-71 Search more

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© Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Prague, Czech Republic
© Institut National de la Recherche Agronomique, Versailles, France
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