Synthesis of 3-amino-3,4-dihydro-1H-quinolin-2-ones through regioselective palladium-catalyzed intramolecular cyclization
作者:François Hallé、Olivier Van der Poorten、Christelle Doebelin、Marie Niederst、Séverine Schneider、Martine Schmitt、Steven Ballet、Frédéric Bihel
DOI:10.1016/j.tetlet.2016.02.094
日期:2016.4
In this Letter we explored the regioselective cyclization of 2-bromophenylalanine derivatives to access enantiopure dihydroquinolinones via an intramolecular regioselective Buchwald–Hartwig cyclization using Pd2(dba)3/XPhos as a catalytic system in the presence of BTPP as organic base. This procedure represents a promising strategy for the direct synthesis of bridged Phe-Xaa dipeptides.
[EN] CARBOSTYRIL DERIVATIVES AS MATRIX METALLOPROTEINASES INHIBITORS<br/>[FR] DERIVES DE CARBOSTYRILE EMPLOYES COMME INHIBITEURS DE METALLOPROTEINASES DE LA MATRICE EXTRACELLULAIRE
申请人:OTSUKA PHARMACEUTICAL CO., LTD.
公开号:WO1994021612A1
公开(公告)日:1994-09-29
(EN) This invention provides a carbostyril derivative of formula (1), where R1, R2, R3, R4, R5, R6 and n are as defined, or its salt. This carbostyril derivative or its salt possess an excellent matrix metalloproteinases inhibitory action.(FR) Dérivé de carbostyrile de la formule (1), dans laquelle R1, R2, R3, R4, R5, R6 et n sont tels que définis, ou son sel. Ce dérivé de carbostyrile ou son sel possède d'excellentes propriétés de neutralisation des métalloprotéinases de la matrice extracellulaire.