Masao Mizuno

Synthesis of mammalian dolichols from plant polyprenols

Abstract Both natural (S)- and unnatural (R)-mammalian dolichols were synthesized for the first time from the mixture of novel polyprenols isolated from Ginkgo biloba .

Polyprenols from conifers: multiplicity in chain length distribution

Abstract Long-chain betulaprenols have been isolated from the leaves of twelve coniferous plants, which can be roughly classified into two categories with respect to the pattern of the chain length distribution. A complex distribution pattern with two maxima has been found in six of them for the first time.

Long-chain polyprenols in the family pinaceae

Abstract Polyprenols with an average number of isoprene residues of 15 to 18 were isolated from the needles of six plants in the Pinaceae, the content being 0.2–2.0% of the dry wt. 1H and 13CNMR, and FDMS spectroscopy revealed that all of the polyprenols were long-chain homologues of betulaprenols with the following sequence of isoprene residues: ω-trans-trans-7 to 19 cis-cis α.