title: C55-Dolichol: occurrence in pig liver and preparation by hydrogenation of plant undecaprenol.
abstract: Apart from the long-chain dolichols (C80-C110), pig liver contains also a family of much shorter polyprenols with dominating C55-polyprenol. This compound was identified as cis/trans-dihydroundecaprenol in which the OH-terminal isoprene residue was saturated. The number of internal trans isoprene residues in this compound was three in comparison with two such residues in long-chain C95-dolichol. Chemical preparation of dihydroundecaprenol with a selectively saturated OH-terminal isoprene residue from fully unsaturated plant undecaprenol is presented.
mesh_terms: D000818:Animals; D004224:Diterpenes / Q000032:analysis*; D004286:Dolichols / Q000032:analysis* / Q000138:chemical synthesis / Q000302:isolation & purification; D005233:Fatty Alcohols; D008099:Liver / Q000032:analysis*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D010944:Plants; D013552:Swine
chemical_list: D004224:Diterpenes; D004286:Dolichols; D005233:Fatty Alcohols