4-[(2-methyl-4-quinolinyl)methoxy]benzoyl chloride HCl salt 、
4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran 在
碳酸氢钠 作用下,
以4%的产率得到(cis,trans)-tert-butyl 9-[({4-[(2-methyl-4-quinolinyl)methoxy]benzoyl}amino)methyl]-2,4-dioxo-1,3,7-triazaspiro[4.4]nonane-7-carboxylate