Sandra Fürmeier et.al.: Fat-Derived Aziridines and Their N-Substituted
Derivatives: Biologically Active Compounds Based on Renewable Raw
Materials
- Author(s): Sandra
Fürmeier, Jürgen O.
Metzger
- Title: Fat-Derived Aziridines and Their N-Substituted Derivatives:
Biologically Active Compounds Based on Renewable Raw Materials
- Date of Upload: 2003
- Article: Eur. J. Org. Chem. 2003, 649-659, Department of Chemistry,
University of Oldenburg, Carl-von-Ossietzky-Str. 9-11, 26129 Oldenburg,
Germany
- Keywords: Amino alcohols, Aziridines, Chiral pool, Fatty acids ,
Nitrogen heterocycles, sustainable development, renewable feedstock, vegetable
oil, plant oil
- Abstract:
- The first successful preparation of the aziridines methyl
(9Z,12S,13R)-12,13-epimino-9-octadecenoate (10), derived from vernolic acid,
and methyl (9R,10S,12R)-9,10-epimino- 12-hydroxyoctadecanoate (12a) and methyl
(9S,10R,12R)- 9,10-epimino-12-hydroxyoctadecanoate (12b), both derived from
ricinoleic acid, is reported. These are the first examples of enantiomerically
pure fat-derived aziridines. Treatment of the corresponding epoxides with
sodium azide and ammonium chloride in ethanol in the presence of water yielded
the new azido hydroxy compounds, which could be treated in an improved way
with polymer-bound triphenylphosphane to afford the aziridines in good yields.
The intermediate azido hydroxy compounds could easily be reduced and so offer
access to a variety of interesting a-amino alcohols 17−21. The synthesis of
various N-substituted aziridine derivatives 22−29 by treatment of methyl
cis-9,10-epiminooctadecanoate (3) with phenyl isocyanate and isothiocyanate,
acetyl chloride, alkyl and aryl chloroformates and acrylonitrile is described.
Finally, the fat-derived 2,5-dialkyl-substituted pyrrole methyl
9-(5-pentyl-1H-pyrrol-2-yl)nonanoate (9) was obtained. The previously reported
bis(aziridine) methyl cis-9,10;cis-12,13-diepiminooctadecanoate, derived from
linoleic acid, and tris-(aziridine) methyl
cis-9,10;cis-12,13;cis-15,16-triepiminooctadecanoate, derived from linolenic
acid,[1] have been subjected to different biological tests and showed
cytotoxic and antimicrobial activity as well as remarkable
antitumour-promoting and good neuroprotective effects.
- URL: http://www.chemie.uni-oldenburg.de/oc/metzger/publikationen/pdf/94.pdf
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