| abstract |
The invention belongs to the field of medicine, in particular to a 2-substituted-5-hexahydropyridazinone-4-carboxylic acid amine derivative, its compound and its pharmaceutically acceptable salts, solvates include hydrates, polycrystals, Prodrugs, co-crystals, tautomers, stereoisomers, and more specifically, the compounds described in the present invention can be used as anti-influenza drugs with CEN inhibitory effect. |