124756-24-7 2-(3,4,5-Trimethoxybenzoyl)-4,4-diethyl-3,5-isoxazolidinedione 2-Dmbdi 3,5-Isoxazolidinedione, 4,4-diethyl-2-(3,4,5-trimethoxybenzoyl)- 4,4-Diethyl-2-(3,4,5-trimethoxybenzoyl)-3,5-isoxazolidinedione