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24(241)[Z]-DEHYDROAMARASTERONE B

Year of first isolation: 1994
Formula:C29H46O7
Molecular weight:506
Occurence in plants:
Leuzea carthamoides [Asteraceae] » Images of Leuzea carthamoides Wikipedia: Leuzea carthamoides [Asteraceae]
Occurence in animals:
 
24(241)[Z]-DEHYDROAMARASTERONE B

STRUCTURE DESCRIPTORS

Canonical SMILESCC(C)C(=CCO)CC(C(C)(C1CCC2(C1(CCC3C2=CC(=O)C4C3(CC(C(C4)O)O)C)C)O)O)O
Isomeric SMILES
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CC(C)/C(=C\CO)/C[C@H]([C@@](C)([C@H]1CC[C@@]2([C@@]1(CC[C@H]3C2=CC(=O)[C@H]4[C@@]3(C[C@@H]([C@@H](C4)O)O)C)C)O)O)O » JSMol: View in 3D
IUPAC Name(2S,3R,5R,9R,10R,13R,14S,17S)-2,3,14-trihydroxy-10,13-dimethyl-17-[(Z,2R,3R)-2,3,7-trihydroxy-5-propan-2-ylhept-5-en-2-yl]-2,3,4,5,9,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-6-one
CAS-RN 
PubChem CID101851584
InChiKey
[ ChemIDPlus: search ]
JHBBUAIBYMEEGM-HIGSQXFKSA-N
InChI1S/C29H46O7/c1-16(2)17(8-11-30)12-25(34)28(5,35)24-7-10-29(36)19-13-21(31)20-14-22(32)23(33)15-26(20,3)18(19)6-9-27(24,29)4/h8,13,16,18,20,22-25,30,32-36H,6-7,9-12,14-15H2,1-5H3/b17-8-/t18-,20-,22+,23-,24-,25+,26+,27+,28+,29+/m0/s1

MASS SPECTRUM

CI-MS (NH3) m/z524 (M+H+ NH3)+, 507 (M+H)+, 489 (M+H-H2O)+, 471(M+H-2H2O)+, 453 (M+H-3H2O)+, 380 (524 - C22--C29)+, 363 (M+H - C22--C29)+, 345
EI-MS m/z (relative intensity %) 
HR-MS 

CARBON NMR

PROTON NMR

D2O
0136.4
0268.3
0368.2
0432.3
0551.4
06209.3
07122.1
08 
0934.9
1039.1
1121.0
1232.0
1348.5
1486.3
1531.2
1621.0
1750.2
1818.1
1924.2
2079.0
2120.6
2275.7
2334.7
24147.4
2530.4
2621.7
2722.2
28124.3
2958.7
CD3OD
0137.36
0268.70
0368.50
0432.86
0551.78
06206.44
07122.11
08167.95
0935.09
1039.24
1121.53
1232.49
1348.56
1485.20
1531.75
1621.71
1750.46
1818.05
1924.41
2077.79
2121.01
2275.94
2334.71
24145.75
2530.73
2618.41
2721.87
28125.95
2958.91
D2O
01-Ha1.4 (t, 13)
01-He1.85
02-Ha3.99 (m, w1/2 = 22)
03-He4.07 (m, w1/2 = 8)
04-Ha1.75
04-He1.75
05-H2.34 (t )
07-H5.99 (d, 2.5)
09-Ha3.11 (m, w1/2 = 22)
11-Ha1.75
11-He1.85
12-Ha1.73
12-He1.95
15-Ha1.65
15-Hb2.05 (m)
16-Ha1.95
16-Hb1.85
17-H2.39 (t )
18-Me0.88 (s )
19-Me1.00 (s )
21-Me1.27 (s )
22-H3.72 (d, 10)
23-Ha2.41
23-Hb1.95
25-H2.87 (sp, 6.6)
26-Me1.04 (d, 6.6)
27-Me1.04 (d, 6.6)
28-H5.45 (t, 7, X)
29-Ha/Hb4.23 (m, AB)
CD3OD
01-Ha1.43 (dd, 13.2, 11.8)
01-He1.80 (dd, 13.2, 4.2)
02-Ha3.84 (ddd, 11.8, 4.2, 3.0)
03-He3.95 (q, 3, 3, 3)
04-Ha1.69-1.76
04-He1.69-1.76
05-H2.38 (dd, 12.6, 4.6)
07-H5.81 (d, 2.5)
09-Ha3.16 (ddd, 11, 7, 2.5)
11-Ha1.71
11-He1.82
12-Ha2.14
12-He1.88
15-Ha1.97
15-Hb1.62
16-Ha1.78
16-Hb2.03
17-H2.43 (dd, 9.6, 8.3 )
18-Me0.898 (s )
19-Me0.970 (s )
21-Me1.218 (s )
22-H3.60 (dd, 10.6, 1.5)
23-Ha2.30
23-Hb1.86
25-H2.85 (6x 6.8)
26-Me1.049 (d, 6.8)
27-Me1.049 (d, 6.8)
28-H5.46 (bt, 6.7, 6.7)
29-Ha/Hb4.17 (d, 6.7)

PHYSICAL PROPERTIES

M.P. 
[α]D20 
IR (KBr) ν max (cm-1) 
UV (EtOH) λ max (log ε)243 (?)

CHROMATOGRAPHY

HPTLC 
TLC 
GLC 
HPLC 

BIOLOGICAL ACTIVITIES

Drosophila melanogaster BII cell assay: EC50 = 5.5 x 10-7M

REFERENCES

First isolationBALTAYEV, U.A. et al. (1997) Phytochemistry 46, 103-105 Search more
BioactivitiesDINAN, L. et al. (1999) J. Computer-aided Mol. Design 13, 185-207 Search more
IdentificationBUDĚŠÍNSKÝ, M. et al. (2008) Steroids 73, 502-514 Search more

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