1,5-Dihydro-1-(5-(1,1-dimethylethyl)-3-isoxazolyl)-5-hydroxy-3,4-dimethyl-2H-pyrrol-2-one 120771-07-5 2H-Pyrrol-2-one, 1,5-dihydro-1-(5-(1,1-dimethylethyl)-3-isoxazolyl)-5-hydroxy-3,4-dimethyl-