[EN] SUBSTITUTED ACIDS FOR THE TREATMENT OF RESPIRATORY DISEASES<br/>[FR] ACIDES SUBSTITUES POUR LE TRAITEMENT DE MALADIES RESPIRATOIRES
申请人:ASTRAZENECA AB
公开号:WO2006005909A1
公开(公告)日:2006-01-19
The invention relates to substituted acids of formula (I), where T,W,X,Y,Z,R1 and R2 as defined in the claims, as useful pharmaceutical compounds for treating asthma and rhinitis, pharmaceutical compositions containing them, and a processes for their preparation.
Copper(I)/Ligand-Catalyzed 5-<i>endo</i> Radical Cyclization–Aromatization of 2,2,2-Trichloroethyl Vinyl Ethers: Synthesis of 2,3-Difunctionalized 4-Chlorofurans
作者:Ram N. Ram、Dharmendra Kumar Gupta、Vineet Kumar Soni
DOI:10.1021/acs.joc.5b02830
日期:2016.2.19
Copper(I)/ligand-catalyzed one pot synthesis of highly substituted 2,3-difunctionalized-4-chlorofurans has been reported. The reaction proceeds via a Cu(I)-catalyzed regioselective 5-endo-trig radical cyclization of 2,2,2-trichloroethyl vinyl ethers followed by the base-promoted dehydrochlorination. The success of the kinetically disfavored 5-endo cyclization was attributed to the formation of captodatively
Trichloromethyl- and tribromomethyl-tributyltin give adducts with aldehydes. On acidolysis the corresponding trichloromethyl- and tribromomethylcarbinols are obtained in good yields. The stereochemistry of the addition reaction with hydratropic aldehyde was investigated and the substituent effects were determined by means of competitive experiments with substituted benzaldehydes. The inefficiency of
Reactions of Phosphorus Pentachloride with Ethyl-, Vinyl-, and Ethynyl(trichloromethyl)carbinol and with 1,1,1-Trichloro-3-nonyn-2-ol
作者:E. Wilkins Reeve、Thomas F. Steckel
DOI:10.1139/v73-301
日期:1973.6.15
ethynyl(trichloromethyl)carbinol (11a), and 1,1,1-trichloro-3-nonyn-2-ol (11b) have been studied. Whereas the reaction of phenyl(trichloromethyl)carbinol with phosphorus pentachloride leads to a nearly quantitative replacement of the hydroxyl group by chlorine, the reactions of the aliphatic (trichloromethyl)carbinols are more complicated. Thus the reaction of 2 with phosphorus pentachloride gave 18% of the
Synthesis of enantiomerically-enriched N-aryl amino-amides via a Jocic-type reaction
作者:Christian Hobson、Michael S. Perryman、Gavin Kirby、Guy J. Clarkson、David J. Fox
DOI:10.1016/j.tetlet.2018.09.046
日期:2018.10
Enantiomerically-enriched secondary trichloromethyl-alcohols react with aryl amines to give enantiomerically-enriched α-N-arylamino-acid derivatives. The intermediate acid chlorides can react in situ with aryl or, regioselectively, with alkyl amines to give aryl or alkyl α-N-arylamino amides.