Methyl iodide → HCID 178489709, compound

Participants

Reaction Steps

To a solution of 120 mg of 3-(2-cyclohexylamino-6,6-dimethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-5-yl)phenol in 2 ml of NMP were added, at room temperature, 38 mg of potassium tert-butoxide and 97 mg of methyl iodide, and the reaction mixture was stirred at constant temperature for 2.5 hours. The reaction solution was diluted with 60 ml of water, 5 ml of 5% aqueous sodium thiosulfate solution were added, and the mixture was extracted twice with 30 ml of ethyl acetate. The combined organic phases were dried over MgSO4 and concentrated by rotary evaporation, and the residue was purified in a purification laboratory by means of preparative HPLC. The product-containing fraction was lyophilized. This gave the product (54 mg) with a molecular weight of 366.5 g/mol (C18H26N2O4S); MS (ESI): m/e=367 (M+H+).

Provenance & Evidence