1,5-Dihydro-5-chloro-1-(5-(1,1-dimethylethyl)-3-isoxazolyl)-3,4-dimethyl-2H-pyrrol-2-one 120771-17-7 2H-Pyrrol-2-one, 1,5-dihydro-5-chloro-1-(5-(1,1-dimethylethyl)-3-isoxazolyl)-3,4-dimethyl-