تفاعل #534211

معادلة التفاعل

2-Amino-5-pyridin-3-yl-benzothiazole-7-carboxylic acid methyl ester

ethyl isocyanate

→

2-(3-Ethyl-ureido)-5-pyridin-3-yl-benzothiazole-7-carboxylic acid methyl ester

المذيبات

1,4-dioxane

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةAfter cooling to ambient temperature

الإجراء التجريبي

A stirred mixture of 2-Amino-5-pyridin-3-yl-benzothiazole-7-carboxylic acid methyl ester (20 mg, 0.07 mmol), ethyl isocyanate (0.03 ml, 0.35 mmol) and dibutyltindiacetate (2 drops) in anhydrous 1,4-dioxane (1.5 ml) was heated by microwave irradiation in a CEM Discover reactor at 125° C. for 1 h. After cooling to ambient temperature, the 2-(3-Ethyl-ureido)-5-pyridin-3-yl-benzothiazole-7-carboxylic acid methyl ester was isolated by Preparative HPLC as a white solid (7.4 mg, 30%).

المصدر