Patent ID: 8367707

Claim:
A compound represented by formula (Ib) or an agriculturally and horticulturally acceptable salt thereof: wherein Het 1 represents 3-pyridyl, R 1 represents hydroxyl, R 2 and R 3 represent propionyloxy or optionally substituted cyclic C 3-6 alkylcarbonyloxy, and R 4 represents hydroxyl, optionally substituted cyclic C 3-6 alkylcarbonyloxy, optionally substituted benzoyloxy, or optionally substituted saturated or unsaturated five- or six-membered heterocyclic carbonyloxy, provided that a compound wherein Het 1 represents 3-pyridyl, R 1 represents hydroxyl, R 2 and R 3 represent propionyloxy, and R 4 represents hydroxyl, is excluded.