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20,22-DIDEHYDROTAXISTERONE

Year of first isolation: 2007
Formula:C27H42O5
Molecular weight:446
Occurence in plants:
Serratula wolffii [Asteraceae] » Images of Serratula wolffii Wikipedia: Serratula wolffii [Asteraceae]
Occurence in animals:
 
20,22-DIDEHYDROTAXISTERONE

STRUCTURE DESCRIPTORS

Canonical SMILESCC(=CCCC(C)(C)O)C1CCC2(C1(CCC3C2=CC(=O)C4C3(CC(C(C4)O)O)C)C)O
Isomeric SMILES
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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/CCC(C)(C)O)/C)O)C)C  » JSMol: View in 3D
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(=CCCC(C)(C)O)/C)O)C)C » JSMol: View in 3D
IUPAC Name(2S,3R,5R,9R,10R,13R,14S,17R)-2,3,14-trihydroxy-17-[(E)-6-hydroxy-6-methylhept-2-en-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 CID102086068
InChiKey
[ ChemIDPlus: search ]
CMIUBJTVLMVMSY-ARXHBIMOSA-N
InChIInChI=1S/C27H42O5/c1-16(7-6-10-24(2,3)31)17-9-12-27(32)19-13-21(28)20-14-22(29)23(30)15-25(20,4)18(19)8-11-26(17,27)5/h7,13,17-18,20,22-23,29-32H,6,8-12,14-15H2,1-5H3/b16-7+/t17-,18+,20+,22-,23+,25-,26-,27-/m1/s1

MASS SPECTRUM

CI-MS (NH3) m/z
HRESI-MS m/z447.3025 [M+H]+, calculated for C27H42O5 447.3021
Electrospray-MS m/z (relative intensity)485 [M+K]+ (69), 429 [M+H-H2O]+ (93), 411 [M+H-2H2O]+ (6), 393 [M+H-3H2O]+ (7), 347 (6), 320 (4)

CARBON NMR

PROTON NMR

CD3OD
0137.6
0268.85
0368.67
0433.0
0552.0
06206.7
07121.9
08167.9
0935.4
1039.5
1121.8
1231.1
1348.9
1485.0
1532.3
1624.1
1754.3
1817.7
1924.6
20134.7
2118.4
22127.7
2324.4
2445.0
2571.5
2629.3
2729.3
CD3OD
01-Ha1.43 (dd, 13.4, 12.2)
01-He1.79 (m)
02-Ha3.84 (ddd, 12.0, 4.2, 3.3)
03-He3.96 (m)
04-Ha1.76 (m)
04-He1.70 (dt, 14.2, 4.5)
05-H2.39 (dd, 12.7, 4.5)
07-H5.81 (d, 2.6)
09-H3.18 (ddd, 11.2, 7.2, 2.6)
11-Ha1.63 (m)
11-He1.84 (m)
12-Ha2.09 (td, 13.0, 8.0)
12-He1.54 (ddd, 13.0, 5.3, 1.7)
15-Ha1.66 (m)
15-Hb2.02 (m)
16-Ha1.83 (m)
16-Hb1.95 (tdd, 12.0, 9.2, 2.3)
17-H2.90 (t, 9.2)
18-Me0.57 (s)
19-Me0.96 (s)
21-Me1.69 (s)
22-H5.30 (t, 7.5)
23-Ha2.13 (m)
23-Hb2.13 (m)
24-Ha1.50 (m)
24-Hb1.50 (m)
26-Me1.20 (s)
27-Me1.20 (s)

PHYSICAL PROPERTIES

M.P.231-233 °C ;
[α]D28+ 71 ° (c 0.025 ; MeOH)
IR (KBr) ν max (cm-1)
UV (EtOH) λ max (log ε)242 nm (4.387)

CHROMATOGRAPHY

HPLCNP-HPLC cyclohexane-isopropanol-water 100:40:3
GLC
HPTLC
TLC

BIOLOGICAL ACTIVITIES

 

REFERENCES

First isolationLIKTOR-BUSA, E. et al. (2007) J. Nat. Prod. 70, 884-886 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
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