sterane

ステラン

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2012/06/28 15:22:29」(JST)

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For the drug with trade name Sterane, see Prednisolone.

Numbering of the C atoms. In steranes the side chain at C-17 varies.

Cyclopentanoperhydrophenanthrene (Cyclopentane perhydro phenanthrene), also known as Steranes are a class of 4-cyclic compounds derived from steroids or sterols via diagenetic and catagenetic degradation and saturation. Steranes have an androstane skeleton with a side chain at carbon C-17. The sterane structure constitutes the core of all sterols. Steranes are sometimes used as biomarkers for the presence of eukaryotic cells.

Steranes may be rearranged to diasteranes during diagenesis (C-27 to C-30, rearrangement at C-18 and C-19, no R at C-24). Oils from clastic source rocks tend to be rich in diasteranes.

References

English Journal

• Changes in Concentration and Distribution of Biomarkers in Biodegraded Oils from Dongying Depression, China.

• Chen Z1, Wang TG, Yan D.
• Applied biochemistry and biotechnology.Appl Biochem Biotechnol.2015 Aug 4. [Epub ahead of print]
• The alkane fraction of 11 biodegraded oils and five non-biodegraded oils from the Dongying Depression, Bohai Bay Basin, eastern China, were analyzed by gas chromatography-mass spectrometry to investigate the biomarker alteration caused by biodegradation. Results indicated that the concentration of 2
• PMID 26239445

• GC-MS analysis of two types of mixed oils, a comparison of composition and weathering patterns.

• Ho SJ1, Wang CY2, Luo YM3.
• Marine pollution bulletin.Mar Pollut Bull.2015 Jul 15;96(1-2):271-8. doi: 10.1016/j.marpolbul.2015.05.013. Epub 2015 May 14.
• In order to compare the effects of weathering on two types of mixed oil, simulated weathering experiments were performed. The first sample was a mixture of two fresh oils and the second sample was a mixture of one fresh oil and another oil sample that had undergone a serious weathering process. Comp
• PMID 25982414

• A Geomimetic Approach to the Formation and Identification of Fossil Sterane Biomarkers in Crude Oil: 18-nor-D-homo-Androstane and 5α,14β-Androstane.

• Bender M1,2, Schmidtmann M1, Summons RE3, Rullkötter J2, Christoffers J4.
• Chemistry (Weinheim an der Bergstrasse, Germany).Chemistry.2015 Jul 1. doi: 10.1002/chem.201502148. [Epub ahead of print]
• A diazonium ion derived from 18-aminoandrostane rearranged upon decomposition by a carbonium and a carbenium ion to furnish a mixture of a cyclopropanated compound and two D-homo-androstenes. Hydrogenation of this mixture gave the saturated hydrocarbons, 18-nor-D-homo-androstane and 5α,14β-androst
• PMID 26134466

Japanese Journal

• Geochemical characteristics of high-maturity crude oils in the Xihu Depression, East China Sea Basin

• GEOCHEMICAL JOURNAL 50(2), 163-178, 2016
• NAID 130005139015

• Evaluation of sedimentary processes of plant particles by gravity flow using biomarkers in plant fragment-concentrated sediments of a turbiditic sequence in the Miocene Kawabata Formation distributed along the Higashiyama-gawa River, Yubari, Hokkaido, Japan

• Researches in organic geochemistry 30(1), 9-21, 2014-12-30
• NAID 110009912918

• 堆積岩中におけるA環メチルステロイド(ステランおよび三芳香環ステラン)のGC/MS解析(有機地球化学会30周年記念事業 地球・環境有機分子検索マニュアルNo.26)

• Researches in organic geochemistry 28, 31-41, 2012-12-28
• NAID 110009593004

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