| abstract |
The present invention provides a compound having the following antiviral effects:n□A1 is CR1AR1B, S or O; A2 is CR2AR2B, S or O; A3 is CR3AR3B, S or O; A4 is CR4AR4B, S or O; here, A1, A2, A3, A4, nitrogen adjacent to A1 The number of hetero atoms of the atom and the carbon atom adjacent to A4 is one or two; R1A and R1B are each independently hydrogen, halogen, or alkyl; R2A and R2B are each independently hydrogen, Halogen, or alkyl group, etc.; R3A and R3B are each independently hydrogen, halogen, or alkyl;nR4A and R4B are each independently hydrogen, halogen, or alkyl; R3A and R3B may together form a non-aromatic carbocyclic or non-aromatic heterocyclic ring; X is CH2, S or O; and R1 is independently a halogen or a hydroxyl group; m is an integer from 0 to 2; n is an integer from 1 to 2.) |