Oxidation of Isodrimeninol with PCC Yields Drimane Derivatives with Activity against Candida Yeast by Inhibition of Lanosterol 14-Alpha Demethylase
作者:Victor Marin、Andres Iturra、Andres Opazo、Bernd Schmidt、Matthias Heydenreich、Leandro Ortiz、Verónica A. Jiménez、Cristian Paz
DOI:10.3390/biom10081101
日期:——
have shown promising antifungal properties against Candidayeast and have emerged as valuable candidates for developing new candidiasis therapies. In this work, we isolated isodrimeninol (C1) from barks of Drimys winteri and used it as starting material for the hemi-synthesis of four sesquiterpenoids by oxidation with pyridinium chlorochromate (PCC). The structure of the products (C2, C3, C4, and C5)
Laricinolic acid (8), a new sesquiterpene of the drimane type, has been isolated from the wood-rotting fungus Laricifomes officinalis. Its structure was elucidated by spectroscopic means and confirmed via a correlation with the known drimenine derivative 13. Oxidation of 8 to 1, followed by a mild thermal treatment, furnished (−)-officinalic acid (4) in 65% yield. This transformation establishes the hitherto unknown absolute configuration of the latter. An independent correlation was achieved by pyrolysis of 4 which furnished (−)-dihydrooxoisodrimenine (14) of known absolute configuration.
906. Sesquiterpenoids. Part II. The constitution and stereochemistry of drimenin, isodrimenin, and confertifolin
作者:H. H. Appel、J. D. Connolly、K. H. Overton、R. P. M. Bond
DOI:10.1039/jr9600004685
日期:——
Appel; Dohr, Scientia (Valparaiso), 1958, vol. 25, p. 137,141
作者:Appel、Dohr
DOI:——
日期:——
Synthesis of isodrimenin from drim-8-en-7-one
作者:P. F. Vlad、E. C. Gorincioi、M. N. Coltsa、C. Deleanu
DOI:10.1007/bf02494791
日期:2000.3
A naturally occurring drimanic sesquiterpenic lactone, isodrimenin, was synthesized from drim-8-en-7-one (1). Compound 1 was converted to the known 11,12-dihydroxydrim-8-en-7-one, which was oxidized with PCC to give 7-oxoisodrimenin, The thioketal of the latter compound was reduced with nickel boride or Raney nickel to give the target isodrimenin.