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3-EPI-RUBROSTERONE

Year of first report:1992
Formula:C19H26O5
Molecular weight:334
Occurence in plants:
Serratula tinctoria [Asteraceae] » Images of Serratula tinctoria Wikipedia: <br />
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Occurence in animals:
 
3-EPI-RUBROSTERONE

MASS SPECTRUM

CI-MS (NH3) m/z352 (M+H+NH3)+, 335 (M+H)+, 317, 299, 237, 221
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 
CD3OD
01-Ha1.12 (dd, 12,13)
01-Hb 
02-Ha3.70 (ddd, 4,9,12)
03-Ha3.42 (ddd, 5,9,12)
04-Ha 
04-He 
05-H2.14
07-H5.92 (d, 2.5)
09-Ha3.18 (ddd, 2.5,7,11)
11-Ha 
11-He 
12-Ha 
12-He 
15-Ha 
15-Hb 
16-Ha 
16-Hb 
18-Me0.88 (s )
19-Me0.98 (s )

PHYSICAL PROPERTIES

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

CHROMATOGRAPHY

HPTLC 
TLC 
GLC 
NP-HPLCRet 13.1 min (Column Zorbax-Sil, 25 cm x 4.6 mm i.d., solvent iso-C8-iPrOH-H2O, 100:30:2 v/v/v, flow-rate 1ml.min-1) (20E 22.6 min, rubrosterone 14.4 min)
RP-HPLCRet 5.7 min (Column Spherisorb-5ODS2, 25 cm x 4.6 mm i.d., solvent ACN : 1? TFA in H2O 23:77 v/v, flow-rate 1ml.min-1) (20E 5.2 min, rubrosterone 5.3 min)

BIOLOGICAL ACTIVITIES

 

REFERENCES

First isolationRUDEL, D. et al. (1992) Planta Med. 58, 358-364 Search more

see Important notice
© UniversitÚ 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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