2-Amino-4-hydroxy-6-[2-(4-carboxyphenyl)alk-1-en-1-yl]pyrido[2,3,-d]pyrimid ines and 2-amino-4-hydroxy-6-[2-(4-carboxyphenyl)alk-1-yn-1-yl]pyrido[2,3-d]pyrimid ines are prepared through the reaction of a halo-aromatic compound and an unsaturated compound in the prosence of a palladium catalyst. The products are chemical intermediates for the preparation of antineo-plastic agents. A typical embodiment is the reaction of a protected 2-amino-4-hydroxy-6-ethynylpyrido[2,3-d]pyrimidine and an ester of 4-iodobenzoic acid.
2-
氨基-
4-羟基-6-[2-(4-羧基苯基)烯基]
吡啶[2,3-d]
嘧啶和2-
氨基-
4-羟基-6-[2-(4-羧基苯基)炔基]
吡啶[2,3-d]
嘧啶是通过在
钯催化剂的存在下,卤素芳香化合物和不饱和化合物的反应制备而成。这些产物是制备
抗肿瘤药物的
化学中间体。一个典型的实施例是保护的2-
氨基-
4-羟基-6-
乙炔基
吡啶[2,3-d]
嘧啶和
4-碘苯甲酸酯的反应。