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2,22-DIDEOXYECDYSONE

Year of first isolation: 1978
Formula:C27H44O4
Molecular weight:432
Occurence in plants:
 
Occurence in animals:
Locusta migratoria [Orthoptera] » Images of Locusta migratoria Wikipedia: Locusta migratoria [Orthoptera]
2,22-DIDEOXYECDYSONE

STRUCTURE DESCRIPTORS

Canonical SMILESCC(CCCC(C)(C)O)C1CCC2(C1(CCC3C2=CC(=O)C4C3(CCC(C4)O)C)C)O
Isomeric SMILES
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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@H](C)CCCC(C)(C)O)O)C)C » JSMol: View in 3D
IUPAC Name(3S,5R,9R,10R,13R,14S,17R)-3,14-dihydroxy-17-[(2R)-6-hydroxy-6-methylheptan-2-yl]-10,13-dimethyl-2,3,4,5,9,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-6-one
CAS-RN 
PubChem CID14017685
InChiKey
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CRCTVUFFBCIURJ-DJHAZVFJSA-N
InChIInChI=1S/C27H44O4/c1-17(7-6-11-24(2,3)30)19-10-14-27(31)21-16-23(29)22-15-18(28)8-12-25(22,4)20(21)9-13-26(19,27)5/h16-20,22,28,30-31H,6-15H2,1-5H3/t17-,18+,19-,20+,22+,25-,26-,27-/m1/s1

MASS SPECTRUM

GC-MS m/z (relative intensity %) - Trisilylated compound648 (M+, C36H68O4Si3) (22), 633 (21), 620 (39), 558 (23), 543 (17), 468 (20), 377 (13), 131 (100).
EI-MS m/z (relative intensity %)432 (M+, C27H44O4) (10); 414 (21), 404 (29), 399 (29), 396(10), 386 (90), 381 (10), 372 (6), 353 (13), 341 (4), 325 (3), 323 (2), 315 (9), 285 (11), 234 (49), 233 (100), 215 (16), 207 (15), 194 (11).

CARBON NMR

PROTON NMR

CD2Cl2
0126.8 *
0229.9 *
0365.0
0431.9 *
0550.8 $
06203.1
07121.4
08164.6
0934.4
10 
1121.1
1232.6 *
1346.3
1485.6
1531.3 *
1628.5 *
1750.8 $
1815.9
1923.9
2035.8
2118.8
2236.8
2321.1
2444.6
2570.9
2629.4
2729.2
CD3OD
01-Ha 
01-He 
02-Ha 
03-He4.04
04-Ha 
04-He 
05-H2.41
07-H5.83
09-Ha3.10
11-Ha 
11-He 
12-Ha 
12-He 
14-H 
15-Ha 
15-Hb 
16-Ha 
16-Hb 
17-H 
18-Me0.72
19-Me1.00
21-Me0.97
22-H 
23-Ha 
23-Hb 
24-Ha 
24-Hb 
25-H 
26-Me1.21
27-Me1.21

PHYSICAL PROPERTIES

M.P.262-263 °C
[α]D21+ 63° (c 5.9; MeOH).
IR (KBr) ν max (cm-1)3600, 2970, 2940, 2880, 1660, 1600, 1440-1470, 1380, 1150, 1
UV (EtOH) λ max (log ε)241 (4.061)

CHROMATOGRAPHY

HPTLC 
TLCRf 0.3 (silica plates, solvent Toluene-Me2CO-Et2MeN 6: 4: 0.1 v/v/v)
GLC 
HPLCRP : column Spherisorb 5-ODS-2, solvent linear gradient (in 30 min) of 20% to 100% ACN-iPrOH (5:2) in 0.1% TFA in water, flow-rate 1 ml.min-1, Rt 25.5 min (2dE : 17.0 min)

BIOLOGICAL ACTIVITIES

 

REFERENCES

First isolationHETRU, C. et al. (1978) Life Sci. 22, 2141-2154 Search more
SynthesisHAAG, T. et al. (1988) J. Chem. Soc., Perkin Trans. I, 2353-2363 Search more

see Important notice
© 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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