Directed aminomethylation of 3-hydroxy-2(1H)-pyridinones and 3-hydroxy-4(1H)-pyridinones: Synthesis of iso-deferiprone
作者:Manojbhai K. Patel、Raymond Fox、Paul D. Taylor
DOI:10.1016/0040-4020(95)01016-5
日期:1996.1
aminomethylation of N-unsubstituted 3-hydroxy-2-(1H)-pyridinones and 3-hydroxy-4(1H)-pyridinones, under Mannich reaction conditions, is directed by the hydroxyl group when this is unprotected and by the kelo group when the hydroxyl is protected as an ether. This offers a convenient route to a variety of Mannich base synthons useful in the synthesis of derivatives of these clinically important, bidentate