Efficient Synthesis of the C(1)−C(9) Fragment of Amphidinolides C, C2, and F
作者:Laurent Ferrié、Bruno Figadère
DOI:10.1021/ol1021228
日期:2010.11.5
The synthesis of the C(1)−C(9) fragment of amphidinolides C, C2, and F was achieved by using a vinyloguous Mukaiyama aldol reaction on a chiral aldehyde with a silyloxyfuran and by using a C-glycosylation of a lactol derivative with an acetyl oxazolidinethione. From the available chiral acetonide−glyceraldehyde, all the stereogenic centers were perfectly induced along the synthesis. The C(1)−C(9) fragment
Syntheses of the C1–C14 and C15–C25 Fragments of Amphidinolide C
作者:Dimao Wu、Craig J. Forsyth
DOI:10.1021/ol303515h
日期:2013.3.15
Divergent syntheses of the C1-C14 and C15-C25 fragments of amphidinolide C have been achieved. The synthesis of the C15-C25 fragment featured cobalt-catalyzed modified Mukaiyama aerobic alkenol cyclization and sulfur-directed regiocontrolled Wacker oxidation of an internal alkene. The C1-C14 fragment was established by alkenyllithium addition to an aldehyde followed by a challenging olefination of a highly inert C9 ketone.