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(5α)-20-HYDROXYECDYSONE [= EPIECDYSTERONE]

Year of first isolation: 1971
Formula:C27H44O7
Molecular weight:480
Occurence in plants:
Achyranthes fauriei [Amaranthaceae] » Images of Achyranthes fauriei Wikipedia: Achyranthes fauriei [Amaranthaceae]
Leuzea carthamoides [Asteraceae] » Images of Leuzea carthamoides Wikipedia: Leuzea carthamoides [Asteraceae]
Silene italica ssp. nemoralis [Caryophyllaceae] » Images of Silene italica ssp. nemoralis Wikipedia: Silene italica ssp. nemoralis [Caryophyllaceae]
Occurence in animals:
 
(5α)-20-HYDROXYECDYSONE [= EPIECDYSTERONE]

STRUCTURE DESCRIPTORS

Canonical SMILESCC12CCC3C(=CC(=O)C4C3(CC(C(C4)O)O)C)C1(CCC2C(C)(C(CCC(C)(C)O)O)O)O
Isomeric SMILES
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[ ChemSpider: search ]
C1[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)([C@@H](CCC(C)(C)O)O)O)O)C)C » JSMol: View in 3D
IUPAC Name(2S,3R,5S,9R,10R,13R,14S,17S)-2,3,14-trihydroxy-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-RN 
PubChem CID11784921
InChiKey
[ ChemIDPlus: search ]
NKDFYOWSKOHCCO-RWWVMDEUSA-N
InChIInChI=1S/C27H44O7/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/h12,15,17,19-22,29-34H,6-11,13-14H2,1-5H3/t15-,17+,19+,20-,21-,22+,24+,25+,26+,27+/m0/s1

MASS SPECTRUM

HR-MS481.2829 [M+H]+, required 481.3165
FAB-MS m/z (relative intensity %)503 (5) [M+Na]+, 481 (100) [M+H]+, 463 (51), 445 (84), 427 (38), 363 (12), 347 (24), 329 (28), 301 (21), 277 (39), 257 (49), 215 (46).

CARBON NMR

PROTON NMR

CD3OD
0143.86
0270.30
0372.68
0424.71
0555.29
06203.00
07123.57
08166.23
0948.26
1039.23
1121.41
1232.42
13~49.0
1485.02
1531.86
1621.67
1750.59
1817.98
1915.72
2077.94
2121.02
2278.44
2327.34
2442.41
2571.31
2629.67
2728.96
CD3OD
01-Hb2.09 (dd 14.4, 3.3)
01-He1.54 (dd 14.4, 3.2)
02-Ha3.96 (dq 4.6, 3.3, 3.2)
03-He3.58 (ddd 4.6, 3.2, ~12)
04-Ha1.90 (m 13.2, 4.5, 3.2)
04-He1.75 (q 13.2, ~12)
05-H2.38 (dd 4.5, ~12)
07-H5.84 (d 2.7)
09-Ha2.72 (ddd 7.4, ~11)
11-Ha~1.66
11-He~1.77
12-Ha2.11 (dt)
12-He1.84 (dd)
15-Ha1.95
15-Hb1.58
16-Ha1.71
16-Hb1.97
17-H2.37 (m
18-Me0.88 (s)
19-Me1.02 (s)
21-Me1.19 (s)
22-H3.34 (dd 1.7, ~11)
23-Ha1.66
23-Hb1.28
24-Ha1.78
24-Hb1.43
26-Me1.20 (s)
27-Me1.19 (s)

PHYSICAL PROPERTIES

M.P.278 °C
[α]D20+56.2 ° (c 0.13 ; MeOH)
IR (KBr) ν max (cm-1)3422 (OH), 1651 (C=O; KBr)
UV (EtOH) λ max (log ε) 

CHROMATOGRAPHY

HPTLC 
TLC 
GLC 
HPLC 

BIOLOGICAL ACTIVITIES

Drosophila melanogaster BII cell assay: EC50 = 3.3 x 10-6M

REFERENCES

First isolationOGAWA, S. et al. (1971) Yakugaku Zasshi 91, 916-920 (Supplement 2) Search more
BioactivitiesDINAN, L. et al. (1999) J. Computer-aided Mol. Design 13, 185-207 Search more
Struct. analysisVOKÁČ, K. et al. (2002) Collect. Czech. Chem. Commun. 67, 124-139 Search more
First isolationSIMON, A. et al. (2004) Steroids 69(6), 389-394 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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