addition-cyclization reactions of various 2-alkynylbenzenamines with CS2 lead to the formation of 2-mercapto-4-benzylidene-4H-benzo[d][1,3]thiazines under mild conditions. The reactions showed moderate to excellent yields and were highly regiospecific, and only the six-membered ring was generated via 6-exo-dig S-cyclization. The reaction can be transferred to highly functionalized 4-benzylidene-4H-benzo[d][1
在温和条件下,各种2-炔基苯甲胺与CS 2的串联加成环化反应导致形成2-巯基-4-亚苄基-4 H-苯并[ d ] [1,3]噻嗪。反应显示出中等至优异的产率,并且具有高度区域特异性,并且仅通过6- exo -dig S-环化生成六元环。该反应可通过CuI催化的交叉偶联和还原偶联反应转移至高度官能化的4-亚苄基-4 H-苯并[ d ] [1,3]噻嗪。
PYRIMIDINE HYDRAZIDE COMPOUNDS AS PGDS INHIBITORS
申请人:Aldous Suzanne C.
公开号:US20100048568A1
公开(公告)日:2010-02-25
This invention is directed to a compound of formula (I):
wherein R
1
, R
2
, R
3
, R
4
and L
1
are as defined herein, a pharmaceutical composition comprising the compound, and the use of the compound to treat allergic and/or inflammatory disorders, particularly disorders such as allergic rhinitis, asthma and/or chronic obstructive pulmonary disease (COPD).
[EN] PYRIMIDINE HYDRAZIDE COMPOUNDS AS PGDS INHIBITORS<br/>[FR] COMPOSÉS D'HYDRAZIDE DE PYRIMIDINE EN TANT QU'INHIBITEURS DE PGDS
申请人:SANOFI AVENTIS
公开号:WO2008121670A1
公开(公告)日:2008-10-09
[EN] This invention is directed to a compound wherein R1, R2, R3, R4 and L1 are as defined herein, a pharmaceutical composition comprising the compound, and the use of the compound to treat allergic and/or inflammatory disorders, particularly disorders such as allergic rhinitis, asthma and/or chronic obstructive pulmonary disease (COPD). [FR] Cette invention concerne un composé dans lequel R1, R2, R3, R4 et L1 sont tels que définis ici, une composition pharmaceutique comportant les composés et l'utilisation du composé pour traiter des troubles allergiques et/ou inflammatoires, en particulier des troubles tels que la rhinite allergique, l'asthme et/ou une maladie pulmonaire obstructive chronique (COPV).