The invention relates to pyrido[2,3-b]pyrazine compounds of general formulae (Ia) and (Ib), to their preparation and use, for example, for the treatment of malignant disorders and other disorders based on pathological cell proliferations.
                            本发明涉及一般式(Ia)和(Ib)的
吡啶并[2,3-b]
吡嗪类化合物,以及它们的制备和用途,例如用于治疗恶性疾病和其他基于病理细胞增殖的疾病。