Synthesis of reported compounds 1-9 begins with the reaction of mangiferin solution in dry dimethylformamide that was reacted with RX (alkyl halide) and K 2 CO 3 with continuous stirring at 60 °C for 10 hours. The reaction mixture gave a residue that was further purified by column chromatography using dichloromethane (CH 2 CL 2 ) and Methanol (CH 3 OH) as eluent to give desired compounds 1-9.