The Bromopentadienyl Acrylate Approach to Himbacine
摘要:
[GRAPHICS]The syntheses of 4,4a-didehydrohimbacine and 4,4a-didehydrohimandravine are presented. Key steps include an intramolecular Diels-Alder reaction of a bromopentadienyl acrylate and Suzuki-Miyaura and Stille coupling reactions.
A Novel Short Convergent Entry into Himbacine Derivatives
作者:Gunther Van Cauwenberge、Ling-Jie Gao、Dirk Van Haver、Marco Milanesio、Davide Viterbo、Pierre J. De Clercq
DOI:10.1021/ol025801g
日期:2002.5.1
[reaction: see text]. The IMDA reaction of 9 leads with good stereoselectivity to exo-adduct 10b. The functionalized ABC-ring core in 10 is well suited for the convergent synthesis of analogues of himbacine, a naturally occurring M2 selective muscarine receptor antagonist, as illustrated with the further synthesis of the dehydro-derivative 5.
The Bromopentadienyl Acrylate Approach to Himbacine
作者:Leon S.-M. Wong、Lisa A. Sharp、Natacha M. C. Xavier、Peter Turner、Michael S. Sherburn
DOI:10.1021/ol0259746
日期:2002.5.1
[GRAPHICS]The syntheses of 4,4a-didehydrohimbacine and 4,4a-didehydrohimandravine are presented. Key steps include an intramolecular Diels-Alder reaction of a bromopentadienyl acrylate and Suzuki-Miyaura and Stille coupling reactions.