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(25S)-20,22-O-(R-ETHYLIDENE) INOKOSTERONE

Year of first report:2012
Formula:C29H46O7
Molecular weight:506
Occurence in plants:
Achyranthes bidentata [Amaranthaceae] » Images of Achyranthes bidentata Wikipedia: <br />
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Occurence in animals:
 
(25S)-20,22-O-(R-ETHYLIDENE) INOKOSTERONE

MASS SPECTRUM

EIS-MS (-) m/z 505 [M-H]-
ESI-MS (+) m/z 529 [M+Na]+, 507 [M+H]+
CI-MS (NH3) m/z  
HREI-MS m/z505.3173 [M-H]- (calcd. for C29H45O7 , 505.3160)

CARBON NMR

PROTON NMR

CD3OD
0137.3 (t)
0268.7 (d)
0368.5 (d)
0432.9 (t)
0551.8 (d)
06206.4 (s)
07122.2 (d)
08167.5 (s)
0935.1 (d)
1039.2 (s)
1121.5 (t)
1232.2 (t)
1349.0 (s)*
1485.2 (s)
1531.7 (t)
1622.6 (t)
1751.3 (d)
1817.6 (q)
1924.4 (q)
2085.3 (s)
2123.6 (q)
2285.5 (d)
2327.3 (t)
2432.0 (t)
2537.0 (d)
2668.2 (t)
2717.0 (q)
eth-1'102.3 (d)
eth-2'22.0 (q)
CD3OD
01-Ha1.41 (m)
01-He1.77 (m)
02-Ha3.82 (m)
03-He3.94 (m)
04-Ha1.73 (m)
04-He1.69 (m)
05-H2.38 (m)
07-H5.80 (d, 2.0)
09-H3.13 m)
11-Ha1.67 (m)
11-He1.79 (m)
12-Ha2.09 (m)
12-He1.82 (m)
15-Ha1.60 (m)
15-Hb1.94 (m)
16-Ha1.92 (m)
16-Hb1.87 (m)
17-H2.32 (m)
18-Me0.85 (s)
19-Me0.95 (s)
21-Me1.13 (s)
22-H3.65 (dd, 8.8, 3.6)
23-Ha1.49 (m)
23-Hb1.49 (m)
24-Ha1.68 (m)
24-Hb1.15 (m)
25-H1.61 (m)
26-CH2OH3.34 (dd, 10.4, 6.4), 3.42 (dd, 10.4, 5.6)
27-Me0.93 (d, 6.8)
eth-H1'5.05 (q, 4.8)
eth-H2'1.29 (d, 4.8)

PHYSICAL PROPERTIES

M.P.░C ;
[α]D20+ 26.8 ░ (c = 0.35 ; MeOH)
IR (KBr) ν max (cm-1)3419, 2934, 1654, 1450, 1139, 1156
UV (MeOH) λ max (log ε) nm242 (4.14) ;

CHROMATOGRAPHY

RP-HPLCColumn Fuji-C18 10 m, mobile phase MeOH-H20 (70:30 v/v), flow rate 10 mL/min, Ret 65 min
GLC
HPTLC
TLC

BIOLOGICAL ACTIVITIES

 

REFERENCES

First isolationZHANG, M. et al. (2012) Molecules 17, 3324-3332 Search more
GeneralZHANG, M. et al. (2012) Personal communication to Ecdybase editors Search more

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