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3-DEHYDROECDYSONE

Year of first isolation: 1972
Formula:C27H42O6
Molecular weight:462
Occurence in plants:
 
Occurence in animals:
Calliphora erythrocephala [Diptera] » Images of Calliphora erythrocephala Wikipedia: Calliphora erythrocephala [Diptera]
Pieris brassicae [Lepidoptera] » Images of Pieris brassicae Wikipedia: Pieris brassicae [Lepidoptera]
Locusta migratoria [Orthoptera] » Images of Locusta migratoria Wikipedia: Locusta migratoria [Orthoptera]
3-DEHYDROECDYSONE

STRUCTURE DESCRIPTORS

Canonical SMILESCC(C1CCC2(C1(CCC3C2=CC(=O)C4C3(CC(C(=O)C4)O)C)C)O)C(CCC(C)(C)O)O
Isomeric SMILES
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C1[C@]2([C@@H](CC(=O)[C@H]1O)C(=O)C=C1[C@@H]2CC[C@]2([C@]1(CC[C@@H]2[C@H](C)[C@@H](CCC(C)(C)O)O)O)C)C » JSMol: View in 3D
IUPAC Name(2S,5R,9R,10R,13R,14S,17R)-17-[(2S,3R)-3,6-dihydroxy-6-methylheptan-2-yl]-2,14-dihydroxy-10,13-dimethyl-1,2,4,5,9,11,12,15,16,17-decahydrocyclopenta[a]phenanthrene-3,6-dione
CAS-RN39750-00-0
PubChem CID5460083
InChiKey
[ ChemIDPlus: search ]
GDSSFVCRVUQMRG-OSCDMYCUSA-N
InChIInChI=1S/C27H42O6/c1-15(20(28)8-9-24(2,3)32)16-7-11-27(33)18-12-21(29)19-13-22(30)23(31)14-25(19,4)17(18)6-10-26(16,27)5/h12,15-17,19-20,23,28,31-33H,6-11,13-14H2,1-5H3/t15-,16+,17-,19-,20+,23-,25+,26+,27+/m0/s1

MASS SPECTRUM

CI-MS (NH3) m/z463 (M+H)+, 445, 427,
EI-MS m/z (relative intensity %)462 (M)+ (<1), 444 (3), 426 (7), 411 (4), 346 (3), 328 (18), 298 (10), 248 (18), 126 (20), 117 (12), 99 (100), 81 (71).

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-Ha1.72
01-He2.73
02-Ha4.88
03-He--
04-Ha2.48
04-He2.70
05-H2.70
07-H6.23
09-Ha3.89
11-Ha1.69
11-He1.91
12-Ha1.87
12-He2.60
15-Ha2.02
15-Hb1.86
16-Ha2.19
16-Hb1.60
17-H2.58
18-Me0.743 (s )
19-Me1.070 (s )
20-H2.16
21-Me1.329 (d, 6.5)
22-H4.09
23-Ha1.90
23-Hb1.90
24-Ha2.31
24-Hb1.80
26-Me1.402 (s )
27-Me1.406 (s )
D2O*
01-Ha1.49 (A) 1.24 (B)
01-He2.45 (A) 1.94 (B)
02-Ha4.65 (A) 3.84 (B)
03-He 
04-Ha2.27 (A) 1.72 (B)
04-He2.64 (A) 1.66 (B)
05-H2.49 (A) 2.26 (B)
07-H5.96 (A) 5.91 (B)
09-Ha3.38 (A) 3.05 (B)
11-Ha1.75 (A) 1.64 (B)
11-He1.90 (A) 1.80 (B)
12-Ha1.59 (A) 1.55 (B)
12-He2.00 (A) 1.95 (B)
15-Ha 
15-Hb 
16-Ha 
16-Hb 
17-H 
18-Me0.70 (A) 0.66 (B)
19-Me1.00 (A) 0.92 (B)
20-H1.73 (A) 1.73 (B)
21-Me0.88 (A) 0.87 (B)
22-H3.63 (A) 3.63 (B)
23-Ha1.45 (A) 1.45 (B)
23-Hb1.29 (A) 1.29 (B)
24-Ha1.37 (A) 1.37 (B)
24-Hb1.65 (A) 1.65 (B)
26-Me1.15 (A) 1.15 (B)
27-Me1.16 (A) 1.16 (B)

PHYSICAL PROPERTIES

M.P. 
[α]D20 
IR (KBr) ν max (cm-1)1720 (C=O), 1660 (cyclohexenone).
UV (EtOH) λ max (log ε)242 (?) ;

CHROMATOGRAPHY

HPTLC 
TLC on silicaRf 0.88 (CHCl3-EtOH 9:2 v/v) (E : 0.45); Rf 0.50 (CHCl3-EtOH 4:1 v/v); Rf 0.62 (CHCl3-EtOH 4:1 v/v, continuous development for 2.5 hours)
GLC 
HPLC1- Retention volume 35 ml [column Partisil-10 ODS, 25 cm long, 4.6 mm i.d., solvent linear gradient (40 min) of MeOH-H2O from 2:3 to 3:2, flow-rate 2 ml.min-1] (E : 35 ml). 2- Retention volume 12 ml [column APS-Hypersil, 25 cm long, 4.6 mm i.d., solvent CH2Cl2-MeOH-iPrOH 95:2:3 v/v/v, flow-rate 3 ml.min-1] (E : 44 ml)

BIOLOGICAL ACTIVITIES

Drosophila melanogaster BII cell assay: EC50 = 6.0 x 10-6M
Calliphora assay: 10% (20-hydroxyecdysone = 100%)

REFERENCES

First isolationKARLSON, P. et al. (1972) Hoppe-Seyler´s Z. Physiol. Chem. 358, 1610-1614 Search more
GeneralDINAN, L. et al. (1978) Steroids 32, 629-638 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
GeneralDINAN, L. et al. (1981) J. Chromatogr. 205, 139-145 Search more
GeneralBLAIS, C. et al. (1984) Hoppe-Seyler´s Z. Physiol. Chem. 365, 809-817 Search more
GeneralMILNER, N.P. et al. (1985) Biochem. J. 231, 369-374 Search more
BioactivitiesDINAN, L. et al. (1999) J. Computer-aided Mol. Design 13, 185-207 Search more

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