2-[5-Chloro-4-[[(tricyclo[3.3.1.13,7]dec-1-ylmethyl)amino]carbonyl]-2-pyridinyl]-benzoic acid, ethyl ester 、 2,3-二溴吡啶 、 L-脯氨酸叔丁酯 以to give the sub-title compound as an oil (325 mg)的产率得到1-(3-bromo-2-pyridinyl)-L-proline 1,1-dimethylethyl ester
This invention provides compounds having antiviral activities especially inhibiting activity for influenza virus, more preferably provides substituted 3-hydroxy-4-pyridone derivatives having cap-dependent endonuclease inhibitory activity.