| abstract |
PROBLEM TO BE SOLVED: To provide a new fungicide for agriculture and horticulture. SOLUTION: The 1,3,5,6-tetra-substituted thieno [2,3-d] pyrimidin-2,4 (1H, 3H) dione compound represented by the formula (1) or a salt thereof. (R 6 is * -O ... N = C ( Ra ) (R b ), etc.) [Selection diagram] None |