英文别名Sunitinib Impurity 43; 2-(Hydroxyimino)-3-oxobutanoic acid tert-butyl ester; 2-Hydroxyimino-3-oxobutanoic acid tert-butyl ester; (Z)-tert-butyl 2-(hydroxyimino)-3-oxobutanoate; tert-Butyl 2-(oxyimino)-3-oxobutyrate; tert-Butyl 2-hydroximino-3-oxobutyrate; tert-Butyl 2-hydroxyimino-3-oxobutanoate; 2-Methyl-2-propanyl 2-(hydroxyimino)-3-oxobutanoate; t-butyl hydroximinoacetoacetate; t-butyl oximino acetoacetate; 2-hydroxyimino-3-oxobutyric acid tert-butyl ester 
