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(24 R ‐14α‐methyl‐24‐ethyl‐5α‐cholest‐9(11)‐en‐3β‐ol: A new 14α‐methylsterol from Cucumis sativus
Author(s) -
Akihisa Toshihiro,
Shimizu Naoto,
Tamura Toshitake,
Matsumoto Taro
Publication year - 1986
Publication title -
lipids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.601
H-Index - 120
eISSN - 1558-9307
pISSN - 0024-4201
DOI - 10.1007/bf02535634
Subject(s) - cucumis , isomerization , chemistry , lipidology , organic chemistry , clinical chemistry , catalysis , stereochemistry , medicinal chemistry , biochemistry , botany , biology
Abstract The structure of a new 14α‐methylsterol isolated from Cucumis sativus has been shown to be (24 R )‐14α‐methyl‐24‐ethyl‐5α‐cholest‐9(11)‐en‐3β‐ol. Characterization of the 14 α ‐methyl‐Δ 9(11) skeletal structure was undertaken based on the comparison with 14α,24‐dimethyl‐5α‐cholest‐9(11)‐en‐3β‐ol obtained from 24‐methylpollinastanol by acid‐catalyzed isomerization. Isolation and identification of an additional 14α‐methylsterol, 24‐methylene‐pollinastanol, from the plant also is described.