Synthese von Ubichinon(45) und Ubichinon(50)

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Abstract
Ubiquinone(45) has been synthesized from 5‐methyl‐2, 3‐dimethoxy‐hydroquinone and solanesol, which is a C45 isoprenoid alcohol. Chain‐lengthening of solanesol by one isoprene unit and condensation with 5‐methyl‐2, 3‐dimethoxy‐hydroquinone led to ubiquinone(50). The synthetic ubiquinone(45) proved to be identical with a natural sample from liver of vitamin A deficient rats and synthetic ubiquinone‐(50) with a natural sample from pig heart.