Substituted fused bicyclic amines as modulators of chemokine receptor activity
申请人:Batt G. Douglas
公开号:US20050197373A1
公开(公告)日:2005-09-08
The present application describes modulators of CCR3 of formula (Ia) and (Ib):
or pharmaceutically acceptable salt forms thereof, wherein Z, R
1
, R
2
, R
3
, R
4
, R
5
, R
5
′, R
6
, a, b, c, d, and u are as defined herein. In addition, methods of treating and preventing inflammatory diseases such as asthma and allergic diseases, as well as autoimmune pathologies such as rheumatoid arthritis and atherosclerosis using said modulators are disclosed.
Enantioselective Intermolecular Pd-Catalyzed Hydroalkylation of Acyclic 1,3-Dienes with Activated Pronucleophiles
作者:Nathan J. Adamson、Katherine C. E. Wilbur、Steven J. Malcolmson
DOI:10.1021/jacs.7b13300
日期:2018.2.28
We report a highly enantioselective Pd-PHOX-catalyzed intermolecular hydroalkylation of acyclic1,3-dienes. Meldrum's acid derivatives and other activated C-pronucleophiles, such as β-diketones and malononitriles, react with a variety of aryl- and alkyl-substituted dienes in ≤20 h at room temperature. The coupled products, obtained in up to 96% yield and 97.5:2.5 er, are easily transformed into useful
Intramolecular Titanium-Mediated Aminocyclopropanation of Terminal Alkenes: Easy Access to Various Substituted Azabicyclo[<i>n</i>.1.0]alkanes<sup>1</sup>
作者:Gerd-Dieter Tebben、Karsten Rauch、Christian Stratmann、Craig M. Williams、Armin de Meijere
DOI:10.1021/ol027352q
日期:2003.2.1
[reaction: see text] A variety of substituted azabicyclo[n.1.0]alkanes were synthesized by intramolecular titanium-mediated cyclopropanation of N-benzyl-N-(2-alkylalk-3-enyl)formamides and N-benzyl-N-alkadienylformamides. N-Benzylpyrroline upon treatment with Grignard reagents undergoes a titanium-mediated carbomagnesiation to yield N-benzyl-N-(2-alkylbut-3-enyl)amines.
An asymmetric intermolecular [4 + 2] cycloaddition of 1,3-dienes with dialkyl acetylenedicarboxylates, which was catalyzed by a rhodium(i)-chiral phosphoramidite complex, was developed. This protocol provided a highlyenantioselective access to prepare carbonyl substituted cyclohexa-1,4-dienes with up to 96% yield and >99% ee. Notably, a cycloaddition on the 10 g scale gave the product in 92% yield
The aqueous Diels-Alderreactions of a series of dienyl ammonium chlorides derived from (E)-2,4-pentadienylamine, (E)-3,5-hexadienyl amine and (E)-4,6-heptadienyl amine with a variety of dienophiles have been examined. A similar Diels-Alder study employing the sodium salt of N-(E)-4,6-heptadienyl succinamic acid in water was also undertaken.