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Steroid


DATA No : SST9129 INFORMANT : Etsuko Yasugi

NAME : 24ethyl-5a-cholesta-7,24-dien-3b-ol

COMMON NAME: peposterol
SYMBOL:
FORMULA: C29H48O1 MOL.WT (average) : 412.691


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BIOLOGICAL ACTIVITY

PHYSICAL AND CHEMICAL PROPERTIES
MELTING POINT:130-131degC (Ref. 9050), acetate 135-137degC (Ref. 9222)

BOILING POINT:

REFRACTIVE INDEX:

OPTICAL ROTATION:+5.0deg (Ref. 9186)

DENSITY:

SOLUBILITY:
SPECTRAL DATA
UV SPECTRA:

IR SPECTRA:acetate : 800, 930cm-1 (Ref. 9222)

NMR SPECTRA:acetate:1H-NMR(CDCl3):3-CH=4.70(TT), 3-OAc=2.03(S), 7-CH=5.15(DT), 18-CH3=0.52(S), 19-CH3=0.81(S), 21-CH3=0.97(D), 26-CH3=1.63(BR.S),27-CH3=1.63(BR.S), 29-CH3=0.93(T) (Ref. 9106)

MASS SPECTRA:acetate : 454[M+](3%),439(6%),379(5%),356(28%),313(100%),296(8%),255(15%),253(22%),227(8%),213(21%) (Ref. 9151)

OTHER SPECTRA:
CHROMATOGRAM DATA

SOURCE
Cucurbitaceae plants (Ref. 9119/9151), squash (Ref. 9222), Kalanchoe plants(Kalanchoe pinnata) (Ref. 9157)
CHEMICAL SYNTHESIS

METABOLISM

GENETIC INFORMATION

NOTE

REFERENCES
[9050]
AUTHOR:Hoshita,T., Yukawa,M., and Kazuno,T.
TITLE:The Isolation of a New Bile Alcohol, 5b-Cholestane-3a,7a,12a,26,27- Pentol from the Bile of Conger Myriaster
JOURNAL:Steroids
VOL:4 PAGE : 569 -574 (1964)
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[9106]
AUTHOR:Akihisa,T. and Tamura,T.
TITLE:Unpublished observations.
JOURNAL:
VOL: PAGE : - (1990)
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[9119]
AUTHOR:Itoh,T., Yoshida,K., Tamura,T., and Matsumoto,T.
TITLE:Co-occurrence of C-24 Epimeric 24-Ethyl-D7-Sterols in the Roots of Trichosanthes Japonica.
JOURNAL:Phytochemistry
VOL:21 PAGE : 727 -730 (1982)
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[9151]
AUTHOR:Akihisa,T., Thakur,S., Rosenstein,F.U., and Matsumoto,T.
TITLE:Sterols of Cucurbitaceae: the Configuration at C-24 of 24-Alkyl-D5-,D7- and D8-Sterols.
JOURNAL:Lipids
VOL:21 PAGE : 39 -47 (1986)
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[9157]
AUTHOR:Akihisa,T., Kokke,W.C.M.C., Tamura,T., and Matsumoto,T.
TITLE:Sterols of Kalanchoe Pinnata : First Report of the Isolation of Both C-24 Epimers of 24-Alkyl-D25-Sterols from a Higher Plant.
JOURNAL:Lipids
VOL:26 PAGE : 660 -665 (1991)
[TOP]

[9186]
AUTHOR:Hill,R.A., Kirk,D.N., Makin,H.L.J., and Murphy,G.M. (1991) in Dictionary of Steroids - Chemical Data, Structures and Bibliographies, Chapman and Hall, London
TITLE:
JOURNAL:
VOL: PAGE : - (1991)
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[9222]
AUTHOR:Nes,W.R., Krevits,K., Joseph,J., Nes,W.D., Harris,B., Gibbons,G.F., and Patterson,G.W.
TITLE:The Phylogenetic Distribution of Sterols in Tracheophytes.
JOURNAL:Lipids
VOL:12 PAGE : 511 -527 (1977)
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Last updated June 19, 2007. Copyright © 1989-2007 Japanese Conference on the Biochemistry of Lipids (JCBL). All rights reserved.