6-[5-(1H-imidazol-2-yl)-2-methyl-phenyl]-8-methyl-2-methylsulfanyl-8H-pyrido[2,3-d]pyrimidin-7-one 、 Potassium;oxido hydrogen sulfite 、 、
4-氨基四氢吡喃 以to give 2.5 mg of 6-[5-(1H-imidazol-2-yl)-2-methyl-phenyl]-8-methyl-2-(tetrahydro-pyran-4-ylamino)-8H-pyrido[2,3-d]pyrimidin-7-one的产率得到6-[5-(1H-imidazol-2-yl)-2-methyl-phenyl]-8-methyl-2-(tetrahydro-pyran-4-ylamino)-8H-pyrido[2,3-d]pyrimidin-7-one