Water → 1-[(1,3-Benzothiazol-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-bromo-xanthine

Participants

Reaction Steps

By utilizing the well known method, 3-methyl-7-(2-butyn-1-yl)-8-bromo-xanthine 1a (327 mg, 1 mmol) was dissolved in N,N-dimethylformamide (5 ml). Potassium carbonate (221 mg, 1.6 mmol) and 2-bromomethyl-1,3-benzothiazole (228 mg, 1 mmol) were added to give a reaction mixture. The reaction mixture was reacted overnight at room temperature and TLC was used to monitor the reaction progress. After the reaction was completed, the obtained reaction mixture was poured into water, suction filtered, and the obtained solid was washed with water, dried to give 1-[(1,3-benzothiazol-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-bromo-xanthine 2b (400 mg, yellow solid), yield: 90%.

Provenance & Evidence