05-12-2019 дата публикации
Номер: US20190367517A1
The present disclosure belongs to the field of medicinal chemistry, and relates to a novel pyridone derivative represented by Formula (I) or a stereoisomer, a pharmaceutically acceptable salt, a solvate or a crystal thereof, and use thereof in the preparation of a drug for preventing or treating diseases such as influenza type A viral infection and/or influenza type B viral infection, particularly use thereof as a PA subunit cap-dependent endonuclease inhibitor for preventing or treating diseases such as influenza type A viral infection and/or influenza type B viral infection. The compounds of the present disclosure have significant activity in inhibiting influenza endonuclease and influenza DNA, can be used either alone or in combination with a neuraminidase inhibitor, a nucleoside drug, a PB2 inhibitor, a PB1 inhibitor, an M2 inhibitor or other anti-influenza drugs, significantly shorten the time of influenza infection and reduces mortality, and have excellent clinical application prospects. 3. The pyridone derivative or the stereoisomer claim 1 , the pharmaceutically acceptable salt claim 1 , the solvate or the crystal thereof according to claim 1 , wherein claim 1 , in the heterocyclic ring or the heteroaromatic ring claim 1 , a heteroatom is dependently selected from N claim 1 , O claim 1 , or S.4. (canceled)5. The pyridone derivative or the stereoisomer claim 1 , the pharmaceutically acceptable salt claim 1 , the solvate or the crystal thereof according to claim 1 , wherein W is selected from the following groups:{'sub': 8', '2', '8', '2', '8', '2', '8', '2', '8', '2', '8', '3', '8', '3', '2', '8', '2', '2', '2', '8', '2', '2', '8', '2', '8', '1-6', '1-6', '1-6', '1-6', '1-6', '1-6', '1-6', '1-6', '1-6', '1-6', '3-6', '3-6', '3-6', '3-6', '3-6', '3-6', '3-6', '3-6', '4-8', '4-8', '4-8', '4-8', '4-8', '4-8', '5-10', '5-10', '5-10', '5-10', '5-10', '5-10', '1-6', '1-6', '3-6', '3-6', '5-10', '5-10', '5-10', '5-10, '(a) —C(═O)—R; (b) —C(═O)—(CH)k-R, k is selected ...
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