Optimized palladium-based approaches to analogues of PK 11195
作者:Sandrine Guillou、Yves L. Janin
DOI:10.1002/jhet.5570450520
日期:2008.9
such as PK11195 and Ro 5-4864 were found more than twenty years ago in the course of research on neurobiology. These ligands were instrumental in pointing out an involvement of the peripheral-type benzodiazepine receptor (PBR) in apoptosis processes. With in mind an improvement of the solubility of PK11195 in biological media, we report here improved reaction conditions for the palladium-based arylation
Orthogonal Synthesis of Indolines and Isoquinolines via Aryne Annulation
作者:Christopher D. Gilmore、Kevin M. Allan、Brian M. Stoltz
DOI:10.1021/ja0780582
日期:2008.2.6
exploiting the reactivity of arynes. Reaction of N-carbamoyl-functionalized enamine derivatives with benzyne affords substituted indolines. An orthogonal reactivity is uncovered when related enamine derivatives are modified as amides, such that isoquinolines are formed as the product of condensation with benzyne. This latter transformation is applied to a concise total synthesis of the opiate alkaloid papaverine
Synthesis of Isoquinoline-3-Carboxylates and Benzocyclobutanes via Reaction of 2-Amidoacrylate Esters with Arynes
作者:Yeeman Ramtohul、Tom Blackburn
DOI:10.1055/s-2008-1072723
日期:2008.5
A mild and general method for the synthesis of a variety of 2-substituted isoquinoline 3-carboxylates and benzocyclobutanes from the reaction of 2-amidoacrylate esters with arynes has been developed.