Syntheses of potential C-1/C-15 and C-2/C-10 subunits of taxoid skeleton 1 using leadtetraacetate cleavage of the Wieland-Miescher ketone derived diol 6 and the Hajos-Parrish ketone derived diol 14 are described.
Taxoid C-ring building blocks from Hajos–Parrish ketone. Practical synthesis of an enantiomerically pure taxoid ABC ring system
作者:José Ignacio Martı́n Hernando、José Quı́lez del Moral、Maria del Rosario Rico Ferreira、José Ignacio Candela Lena、Siméon Arseniyadis
DOI:10.1016/s0957-4166(99)00062-2
日期:1999.2
A synthesis and characterization of conveniently functionalized taxoidC-ring building blocks to be used in an A+C approach is presented. Subsequently, a four-step entry to the tricyclic taxoid ABC skeleton, which allows for a high degree of convergency and is highlighted by a stannylene-mediated coupling to link the left- and right-half moieties, followed by an intramolecular aldol reaction to effect
An expedient access to highly functionalized B-seco taxoid frameworks
作者:S. Arseniyadis、J.I. Martin Hernando、J. Quilez del Moral、D.V. Yashunsky、P. Potier
DOI:10.1016/s0040-4039(98)00600-5
日期:1998.5
We report a convergent approach which proceeds in the A+C-->AC direction and leads in a straightforward manner to the conveniently functionalized B-seco-taxane frameworks 7 and 8, offering linkage possibilities at C1-C2. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.
Left and right-half taxoid building blocks from (S)-(+)-Hajos-Parrish ketone
作者:Siméon Arseniyadis、Dmitry V. Yashunsky、Rossimiriam Pereira de Freitas、Manuel Muñoz Dorado、Pierre Potier、Loïc Toupet
DOI:10.1016/0040-4020(96)00735-1
日期:1996.9
An efficient 11-step synthesis of the optically homogeneous bridged ring system 4, and a 5-step synthesis of the cyclohexane derivative 5a from Hajos-Parrish ketone is presented.