3-[(2-乙氧基-3,4-二氧代-1-环丁基-1-氨基]-2-羟基-N,N-二甲基-苄胺;

3-[(2-ETHOXY-3,4-DIOXO-1-CYCLOBUTEN-1-YL)AMINO]-2-HYDROXY-N,N-DIMETHYL-BENZAMIDE; Benzamide,3-[(2-ethoxy-3,4-dioxo-1-cyclobuten-1-yl)amino]-2-hydroxy-N,N-dimethyl-; 3-((2-Ethoxy-3,4-dioxocyclobut-1-en-1-yl)amino)-2-hydroxy-N,N-dimethylbenzamide;