反应详情

温度

26 °C

A mixture of 5-amino-8-(2-furyl)-3-(2-hydroxyethyl)-1-methyl-[1,2,4]triazolo[5,1-f]purin-2-one obtained in step 6 (3.5 g, 11 mmol), p-toluene sulphonylchloride (5.2 g, 27 mmol) were taken in pyridine (30 ml) and stirred at 25-27° C. for 16 hours. To the reaction mixture hexane (100 ml) was added and solid obtained was filtered off and washed with water (100 ml) followed by hexane (100 ml) to obtain 2-[5-amino-8-(2-furyl)-1-methyl-2-oxo-[1,2,4]triazolo[5,1-f]purin-3-yl]ethyl 4-methylbenzenesulfonate (4.1 g, 78%) as a brown solid.

1. customsolid obtained
2. filtrationwas filtered off
3. washwashed with water (100 ml)