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3-DEHYDRO-20-HYDROXYECDYSONE

Year of first isolation: 1977
Formula:C27H42O7
Molecular weight:478
Occurence in plants:
Serratula strangulata [Asteraceae] » Images of Serratula strangulata Wikipedia: Serratula strangulata [Asteraceae]
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-DEHYDRO-20-HYDROXYECDYSONE

STRUCTURE DESCRIPTORS

Canonical SMILESCC12CCC3C(=CC(=O)C4C3(CC(C(=O)C4)O)C)C1(CCC2C(C)(C(CCC(C)(C)O)O)O)O
Isomeric SMILES
[ PubChem: search | XML ]
[ ChemSpider: search ]
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@](C)([C@@H](CCC(C)(C)O)O)O)O)C)C » JSMol: View in 3D
IUPAC Name(2S,5R,9R,10R,13R,14S,17S)-2,14-dihydroxy-10,13-dimethyl-17-[(2R,3R)-2,3,6-trihydroxy-6-methylheptan-2-yl]-1,2,4,5,9,11,12,15,16,17-decahydrocyclopenta[a]phenanthrene-3,6-dione
CAS-RN 
PubChem CID101254420
InChiKey
[ ChemIDPlus: search ]
WCHJQYCCTKKLLC-JSDLXWKJSA-N
InChIInChI=1S/C27H42O7/c1-23(2,32)9-8-22(31)26(5,33)21-7-11-27(34)16-12-18(28)17-13-19(29)20(30)14-24(17,3)15(16)6-10-25(21,27)4/h12,15,17,20-22,30-34H,6-11,13-14H2,1-5H3/t15-,17-,20-,21-,22+,24+,25+,26+,27+/m0/s1

MASS SPECTRUM

CI-MS (NH3) m/z479 (M+H)+, 461, 443, 425, 361, 343
EI-MS m/z (relative intensity %)478 (M)+(<1), 460 (<1), 442 (1), 427 (5), 424 (11), 409 (2), 406 (3), 361 (14), 345 (24), 343 (73), 342 (27), 327 (16), 326 (27), 325 (27), 283 (20), 269 (22), 189 (18), 161 (10), 143 (24), 99 (100), 81 (73).
HR-MS 

CARBON NMR

PROTON NMR

D2O*
0140.92 (A) 38.61 (B)
0273.89 (A) 72.89 (B)
03213.67 (A) 96.38 (B)
0446.34 (A) 41.51 (B)
0559.60 (A) 56.60 (B)
06205.97 (A) 208.99 (B)
07123.07 (A) 123.53 (B)
08171.14 (A) 170.94 (B)
0937.16 (A) 36.57 (B)
1040.92 (A) 40.62 (B)
11 22.76
12 33.40
1349.90 (A) 49.82 (B)
14 87.49
15 32.77
16 22.58
17 51.63
18 19.52
1924.06 (A) 25.06 (B)
20 80.38
21 22.12
22 79.75
23 28.46
24 43.01
25 74.07
26 29.97
27 30.57
C5D5N
01-Ha 
01-He 
02-Ha 
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-Me1.24 (s )
19-Me1.06 (s )
21-Me1.62 (s )
22-H 
23-Ha 
23-Hb 
24-Ha 
24-Hb 
26-Me1.38 (s )
27-Me1.38 (s )
D2O*
01-Ha1.55 (A) 1.3 (B)
01-He2.5 (A) 2.0 (B)
02-Ha4.70 (dd, 12.6, 6.5) (A) 3.92 (dd, 12.1, 4.6)
04-Ha2.75 (t, 14.1) (A) 1.7 (B)
04-He2.39 (A) 1.8 (B)
05-H2.56 (dd, 14.1, 4.1) (A) 2.34 (dd, ~9.5, 5)
07-H6.04 (d, 2.5) (A) 5.99 (B)
09-Ha3.44 (m, w1/2=22) (A) 3.14 (B)
11-Ha1.85 (A) 1.75 (B)
11-He1.95 (A) 1.85 (B)
12-Ha 
12-He 
15-Ha 
15-Hb 
16-Ha 
16-Hb 
17-H2.33 (A) 2.33 (B)
18-Me0.90 (A) 0.87 (B)
19-Me1.08 (A) 0.99 (B)
21-Me1.26 (A) 1.26 (B)
22-H3.43 (A) 3.43 (B)
23-Ha1.30 (A)
23-Hb 1.63 (B)
24-Ha 
24-Hb 
26-Me1.24 (A) 1.24 (B)
27-Me1.24 (A) 1.24 (B)

PHYSICAL PROPERTIES

M.P. 
[α]D20 
IR (KBr) ν max (cm-1)1700 (C=O), 1640 (cyclohexenone).
UV (EtOH) λ max (log ε) 

CHROMATOGRAPHY

TLCRf 0.44 (silica plates, CH2Cl2-MeOH 4:1 v/v); Rf 0.41 (silica plates, CHCl3-MeOH 4:1 v/v); Rf 0.77 (silica plates, CHCl3-MeOH 9:2 v/v, continuous development for 2.5 hours)
GLC 
RP-HPLCRetention volume 22 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] (20E : 22 ml);
NP-HPLCRetention volume 27 ml [column APS-Hypersil, 25 cm long, 4.6 mm i.d., solvent CH2Cl2-MeOH-iPrOH 95:1:4 v/v/v, flow-rate 3 ml.min-1] (20E : 97 ml)

BIOLOGICAL ACTIVITIES

 

REFERENCES

First isolationKOOLMAN, J.A. et al. (1977) Hoppe-Seyler´s Z. Physiol. Chem. 358, 1339-1344 Search more
GeneralDINAN, L. et al. (1978) Steroids 32, 629-638 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
GeneralGIRAULT, J.-P. et al. (1989) Arch. Insect Biochem. Physiol. 10, 199-213 Search more
GeneralSOMME-MARTIN, G. et al. (1990) Arch. Insect Biochem. Physiol. 15, 43-56 Search more

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