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A novel triterpenoid carbon skeleton in immature sulphur-rich sediments
Journal article   Peer reviewed

A novel triterpenoid carbon skeleton in immature sulphur-rich sediments

Stefan Schouten, Jaap S. Sinninghe Damste and Jan W. de Leeuw
Geochimica et cosmochimica acta, Vol.59(5), pp.953-958
01/03/1995
DOI: https://doi.org/10.1016/0016-7037(95)00013-5

Abstract

Apennines Asia California carbon Cenozoic clastic rocks Cretaceous Europe Geochemistry of rocks, soils, and sediments isoprenoids Italy Jordan Jurf ed Darawish marl Mesozoic Messinian Middle East Miocene Monterey Formation Neogene oil shale organic compounds organic materials organic residues organic sulfur sedimentary rocks sediments Southern Europe sulfur Tertiary triterpenoids United States upper Miocene Vena del Gesso Basin
A novel S compound, 1,4-bis(2',5',5',8a'-tetramethylhexahydrothiochroman)-butane is reported in immature S-rich sediments from the Miocene Monterey formation, California. This novel triterpenoid C skeleton has not been reported yet in sediments or organisms, and it may be biosynthesized through an enzymatic cyclization reaction of squalene (II) which shows similarities to the biosynthesis of beta ,beta -carotene (III) from lycopene (IV).

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