[EN] N-CYCLOPROPYL-N-PIPERIDINYL-AMIDES, PHARMACEUTICAL COMPOSITIONS CONTAINING THEM AND USES THEREOF [FR] N-CYCLOPROPYL-N-PIPÉRIDINYL-AMIDES, COMPOSITIONS PHARMACEUTIQUES LES CONTENANT ET LEURS UTILISATIONS
N-CYCLOPROPYL-N-PIPERIDINYL-AMIDES, PHARMACEUTICAL COMPOSITIONS CONTAINING THEM AND USES THEREOF
申请人:NOSSE Bernd
公开号:US20140045823A1
公开(公告)日:2014-02-13
The present invention relates to compounds of general formula I,
wherein R
1
, L
P
, HetAr
1
, (Het)Ar
2
and n are as defined in the application, which have valuable pharmacological properties, and in particular bind to the GPR119 receptor and modulate its activity.
The Pd(0)-catalyzed regioselective C-2 (hetero)arylation of tert-butyl 4-thiazolecarboxylate with a broad (hetero)aryl halide is reported, including the direct coupling of pyridinyl halides. The process has allowed the preparation of valuable 2-pyridynyl-4-thiazolecarboxylates which are components of the complex heterocyclic core of thiopeptides antibiotics. As a first application, a synthesis of a tert-butyl sulfomycinamate thio-analogue from tert-butyl 4-thiazolecarboxylate is here described through a three-step direct pyridinylation, halogenation, and Stille cross-coupling sequence.