1,3,5,6-Tetra-substituted thieno[2,3-d]pyrimidine-2,4(1H,3H)dione compounds and agricultural and horticultural fungicides

摘要

PROBLEM TO BE SOLVED: To obtain 1,3,5,6-tetra-substituted thieno[2,3-d]pyrimidine-2,4(1H,3H)dione which has excellent bactericidal activity, excellent safety and can be synthesized industrially advantageously. Provided are a compound and an agricultural/horticultural fungicide containing the compound as an active ingredient. A compound represented by formula (I) or a salt thereof. (R