|
|Section2= |Section3= }} Lanostane or 4,4,14-trimethylcholestane is a chemical compound with formula . It is a polycyclic hydrocarbon, specifically a triterpene. It is an isomer of cucurbitane. The name is applied to two stereoisomers, distinguished by the prefixes 5α- and 5β-, which differ by the handedness of the bonds at a particular carbon atom (number 5 in the standard steroid numbering scheme).〔 File:5alpha-lanostane.svg|5α-Lanostane File:5beta-lanostane.svg|5β-Lanostane Replacement of a hydrogen atom attached to carbon number 3 in the 5α isomer with a hydroxyl group results in lanosterol, the biogenetic precursor of the steroids in animals.〔IUPAC Commission on the Nomenclature of Organic Chemistry and IUPAC-IUB Commission on Biochemical Nomenclature (1969), ''The Nomenclature of Steroids - Revised Tentative Rules''. European J. of Biochemistry, volume 10, 1-19〕 ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「lanostane」の詳細全文を読む スポンサード リンク
|