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(5α)-22-DEOXYINTEGRISTERONE A

Year of first isolation: 1990
Formula:C27H44O7
Molecular weight:480
Occurence in plants:
Silene nutans [Caryophyllaceae] » Images of Silene nutans Wikipedia: Silene nutans [Caryophyllaceae]
Occurence in animals:
 
(5α)-22-DEOXYINTEGRISTERONE A

STRUCTURE DESCRIPTORS

Canonical SMILES 
Isomeric SMILES
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[C@@H]1([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@](C)(CCCC(C)(C)O)O)O)C)C)O » JSMol: View in 3D
IUPAC Name(1S,2R,3R,5S,9R,10R,13R,14S,17S)-17-((S)-2,6-dihydroxy-6-methylheptan-2-yl)-1,2,3,14-tetrahydroxy-10,13-dimethyl-1,2,3,4,5,9,10,11,12,13,14,15,16,17-tetradecahydro-6H-cyclopenta[a]phenanthren-6-one
CAS-RN 
PubChem CID 
InChiKey
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MXVMNRFIIZOGBE-CWQJGELWSA-N
InChIInChI=1S/C27H44O7/c1-23(2,32)9-6-10-25(4,33)20-8-12-27(34)16-13-18(28)17-14-19(29)21(30)22(31)26(17,5)15(16)7-11-24(20,27)3/h13,15,17,19-22,29-34H,6-12,14H2,1-5H3/t15-,17+,19+,20-,21+,22+,24+,25-,26+,27+/m0/s1

MASS SPECTRUM

CI-MS (NH3) m/z498, 491 (MH)+, 463, 445, 427, 409, 380, 363, 347
EI-MS m/z (relative intensity %) 
HR-MS 

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 
28 
29 
D2O
01-Ha3.73 (d, 3.5)
01-He--
02-He3.94 (m, w1/2=8)
03-He3.71 (m, w1/2=18)
04-Ha1.65
04-He1.86
05-H2.56 (dd, 11, 7.2)
07-H6.00 (d, 2.5)
09-Ha2.91 (m, w1/2=21)
11-Ha1.78
11-He2.28 (m )
12-Ha2.26
12-He1.88
15-Ha 
15-Hb 
16-Ha 
16-Hb 
17-H2.28 (m )
18-Me0.81 (s )
19-Me0.93 (s )
21-Me1.29 (s )
22-Ha 
22-Hb 
23-Ha 
23-Hb 
24-Ha 
24-Hb 
26-Me1.22 (s )
27-Me1.22 (s )

PHYSICAL PROPERTIES

M.P. 
[α]D20 
IR (KBr) ν max (cm-1) 
UV (EtOH) λ max (log ε) 

CHROMATOGRAPHY

HPTLC 
TLC 
GLC 
HPLC1- Retention time 17.6 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); 2- Retention time 40.4 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)

BIOLOGICAL ACTIVITIES

Drosophila melanogaster BII cell assay: EC50 = 8.0 x 10-8M

REFERENCES

First isolationGIRAULT, J.-P. et al. (1990) J. Nat. Prod. 53, 279-293 Search more
BioactivitiesDINAN, L. et al. (2005) In: Comprehensive Molecular Insect Science (eds. L. I. Gilbert, C. Iatrou, S. Gill), Elsevier, Oxford, III, 197-242 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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