Derivados de tetrahidro-imidazo[1,5-A]pirazina, procedimientos de preparación y usos médicos de los mismos

摘要

Tetrahydro-imidazo[1,5- a ]pyrazine derivatives of formula ( I ), their preparation methods, pharmaceutical compositions containing the derivatives and uses thereof as medicaments, especially as dipeptidyl peptidase IV inhibitor, wherein the substituents of formula ( I ) are defined as same as the description.