The title compounds were obtained from reaction of variously substituted 2(1H)pyrazinones with acetylenic derivatives. Experimental evidence points out to a two step mechanism : a DielsAlder cycloaddition followed by immediate decomposition of the adducts into the title products via two competitive retro DielsAlderreactions. The product distribution, which is shown to be highly dependent on the
acetylenic derivatives to give specifically substituted pyridones or pyridines. The observed selectivity can be explained in terms of HO-LU interactions for the reagents and two competitive retro Diels-Alderreactions of the primary bicycloadducts. With cyanotosylate as dienophile no pyrimidone derivative but a new 2(1H)-pyrazinone is obtained.
[EN] IMIDAZOLE MACROCYCLES FOR THE TREATMENT OF AUTOIMMUNE DISEASE<br/>[FR] MACROCYCLES D'IMIDAZOLE POUR LE TRAITEMENT D'UNE MALADIE AUTO-IMMUNE
申请人:[en]F. HOFFMANN-LA ROCHE AG
公开号:WO2023148129A1
公开(公告)日:2023-08-10
The present invention relates to compounds of formula (Ia), (Ia), wherein R2, M1, M2, M3, Q1and Q2are as described herein, and their pharmaceutically acceptable salt thereof, and compositions including the compounds and methods of using the compounds.