[EN] 1,1-DISUBSTITUTED CYCLOALKYL DERIVATIVES AS FACTOR XA INHIBITORS<br/>[FR] DERIVES CYCLOALKYLES 1,1-DISUBSTITUES UTILISES EN TANT QU'INHIBITEURS DU FACTEUR XA
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2003099276A1
公开(公告)日:2003-12-04
The present application describes 1,1-disubstituted cycloalkyl compounds and derivatives thereof, or pharmaceutically acceptable salt forms thereof, which are useful as inhibitors of factor Xa.
Direct Alkenylation and Alkylation of Pyridone Derivatives by Ni/AlMe<sub>3</sub> Catalysis
作者:Yoshiaki Nakao、Hiroaki Idei、Kyalo Stephen Kanyiva、Tamejiro Hiyama
DOI:10.1021/ja907214t
日期:2009.11.11
derivatives are achieved through inter- and intramolecular insertion of alkynes, 1,3-dienes, and alkenes into the C(6)-H bond by nickel/AlMe(3) catalysis. Coordination of the heterocycles to the Lewis acid cocatalyst through their basic carbonyl oxygen is considered to be responsible for the regioselective activation of the C-H bonds, probably through oxidativeaddition to nickel(0).
Palladium-Catalyzed Dearomative Cyclocarbonylation by CN Bond Activation
作者:Hui Yu、Guoying Zhang、Hanmin Huang
DOI:10.1002/anie.201504805
日期:2015.9.7
intramolecular cyclocarbonylation of allylamines. [Pd(Xantphos)I2], which features a very large bite angle, has been found to facilitate the rapid carbonylation of azaarene‐substituted allylamines into bioactive quinolizinones in good to excellent yields. This transformation represents the first dearomative carbonylation and is proposed to proceed by palladium‐catalyzed CNbondactivation, dearomatization
Reductive transformations of unsaturated azabicyclic nitrolactams
作者:Mihály Viktor Pilipecz、Tamás Róbert Varga、Pál Scheiber、Zoltán Mucsi、Amélie Fàvre-Mourgues、Sándor Boros、László Balázs、Gábor Tóth、Péter Nemes
DOI:10.1016/j.tet.2012.04.100
日期:2012.7
different reducing methods unsaturated indolizidine and quinolizidine lactams substituted with a nitrogroup were transformed into various alkaloid-like derivatives. Hydrogen transfer and palladium catalyzed hydrogenation gave compounds of ketolactam or lactam type meanwhile the nitrogroup was eliminated. On the other hand, in presence of Raney-nickel catalyst the nitro compounds were reduced to diastereomeric
Synthesis and transformations of sulfur-substituted indolizidines and quinolizidines
作者:Shang-Shing P. Chou、Chung-Wen Ho
DOI:10.1016/j.tetlet.2005.09.191
日期:2005.12
underwent [4+2] cycloaddition reactions with p-toluenesulfonyl isocyanate to give tetrahydropyridinones 3a–b. Through N-detosylation of 3a–b and subsequent intramolecular cyclization, indolizidine 5a and quinolizidine 5b were synthesized. Useful functional group transformations of compounds 5a–b were also investigated.