Name： Febuxostat

Intermediate name:2-[3-Cyano-4-isobutoxyphenyl]-4-methylthiazole-5-carboxylic acid
Cas No.：144060-53-7

Structure:

Intermediate name:5-Thiazolecarboxylic acid, 2-(4-hydroxyphenyl)-4-methyl-, ethyl ester
Cas No.：161797-99-5

Structure:

Intermediate name:ethyl 2-(3-formyl-4-hydroxyphenyl)-4-methylthiazole-5-carboxylate
Cas No.：161798-01-2

Structure:

Intermediate name: Ethyl 2-(3-formyl-4-isobutoxyphenyl)-4-methylthiazole-5-carboxylate
Cas No.：161798-03-4

Structure:

Intermediate name:2-[3-cyano-4-(2-methylpropoxy)phenyl]-4-methyl-5-Thiazolecarboxylic acid ethyl ester
Cas No.：160844-75-7

Structure: