The invention relates to a compound of formula (I)
wherein A1 to A3 and R1 to R3 are defined as in the description and in the claims. The compound of formula (I) can be used as a medicament.
[EN] NOVEL PYRROLIDINE DERIVATIVES<br/>[FR] NOUVEAUX DÉRIVÉS DE PYRROLIDINE
申请人:HOFFMANN LA ROCHE
公开号:WO2013120921A9
公开(公告)日:2015-10-08
Regiospecific and Stereospecific Palladium-Catalyzed Cycloaddition of Azetidines and Carbodiimides
作者:Jin-Ook Baeg、Corinne Bensimon、Howard Alper
DOI:10.1021/jo00106a043
日期:1995.1
Azetidines react with carbodiimides in the presence of bis(benzonitrile)palladium dichloride to form tetrahydropyrimidin-2-imines in 64-97% yields. The reaction is both regio- and stereospecific, the cycloaddition occurring with retention of configuration of the carbon centers bearing the substituent groups.
Synthesis of Tetrahydrothiazin-2-imines by the Regiospecific Palladium(II)-Catalyzed Cycloaddition of Azetidines and Isothiocyanates. Isolation of Bis(azetidine)palladium Dichloride, a Key Catalytic Intermediate
作者:Jin-Ook Baeg、Howard Alper
DOI:10.1021/jo00115a025
日期:1995.5
Azetidines react regiospecifically with isothiocyanates in the presence of bis(benzonitrile)palladium dichloride to form tetrahydro-1,3-thiazin-2-imines in 82-98% yields. A dichloro bis(azetidine)-palladium(II) complex, obtained from (PhCN)(2)PdCl2 and an azetidine, was found to be catalytically active for the cycloaddition reaction of azetidines with isothiocyanates.
WASSERMAN H. H.; LIPSHUTZ B. H.; TREMPER A. W.; WU J. S., J. ORG. CHEM., 1981, 46, NO 15, 2991-2999
作者:WASSERMAN H. H.、 LIPSHUTZ B. H.、 TREMPER A. W.、 WU J. S.