Stereoselective synthesis of the C3-C15 fragment of callyspongiolide
作者:Gopal Reddy Ramidi、Jhillu S. Yadav、Debendra K. Mohapatra
DOI:10.1016/j.tetlet.2018.08.041
日期:2018.9
The synthesis of C3-C15 fragment of callyspongiolide, a 14-membered macrolides isolated from the marine sponge Callyspongia sp., which was collected from the Indonesia, is reported. Highlights of the synthesis include construction of E-olefin through Julia-Kocienski olefination, Brown asymmetric allylation and base-induced elimination reactions for propargyl alcohol synthesis.
(3S,5R)-6-(benzyloxy)-3-methylhexane-1,5-diol in the synthesis of insect pheromones with methyl-branched carbon chain and of amphidinolide L C 7 –C 14 fragment
作者:I. V. Mineeva
DOI:10.1134/s1070428014020043
日期:2014.2
New building block (3S,5R)-6-(benzyloxy)-3-methylhexane-1,5-diol was obtained, and based thereon new formal syntheses of (Z)-trogodermal, a component of the sex pheromone of smaller tea tortrix and of the alarm pheromone of ants of genus Crematogaster were suggested. A new synthetic protocol for (3S)-5-methyl-5-oxopentyl acetate and (3S)-5-(benzyloxy)-3-methylpentanal, convenient building blocks for insect pheromones designing was developed. A new simple and efficient asymmetric synthesis of C-7-C-14 fragment of the cytotoxic macrolactone amphidinolide L was carried out.
(4R,6R)-6-(hydroxymethyl)-4-methyltetrahydro-2H-pyran-2-one in the synthesis of polyfunctional compounds with the methyl-branched carbon skeleton
作者:I. V. Mineeva
DOI:10.1134/s1070428013020127
日期:2013.2
A simple and efficient asymmetrical synthesis was performed of a convenient bifunctional building block, methyl (R)-5,5-dimethoxy-3-methylpentanoate and its (S)-enantiomer. The possibility was shown of its application to the synthesis of insect pheromones.