New 2-(pyrazolopyridin-3-yl)pyrimidine derivatives are disclosed; as well as process for their preparation, pharmaceutical compositions comprising them and their use in therapy as inhibitors of Janus Kinases (JAK).Se describen nuevos derivados de 2-(pirazolopiridin-3-iI)pirimidin a, así como un procedimiento para su preparación, composiciones farmacéuticas que los comprenden y su uso en terapia como inhibidores de cinasas Janus (JAK).