反应详情

Cbz-Cl was added to the solution of 3-(2-(benzyloxy)-4-(ethoxymethoxy)-5-isopropylphenyl)-4-(1-methyl-1H-indol-5-yl)-1H-1,2,4-triazol-5(4H)-one and DIPEA in dichloromethane and reaction solution was stirred for 2 h at room temperature. Washed with water and extracted with dichloromethane and solvent was removed. The crude reaction mixture was carried over to the next reaction without further purification. The reaction mixture was diluted by methanol and treated with concentrated HCl and heated it up to 65° C. Column chromatogram produced the desired benzyl 3-(2-(benzyloxy)-4-(ethoxymethoxy)-5-isopropylphenyl)-4-(1-methyl-1H-indol-5-yl)-5-oxo-4,5-dihydro-1H-1,2,4-triazole-1-carboxylate.

1. washWashed with water
2. extractionextracted with dichloromethane and solvent
3. customwas removed
4. customThe crude reaction mixture
5. customwas carried over to the next reaction without further purification
6. temperatureheated it up to 65° C