Water → HCID 25125211, compound

Participants

Reaction Steps

To a solution of product 3-[3-(4,6-Dimethyl-1,2-benzisothiazol-3-ylmethyl)-2-oxo-2,3-dihydro-benzimidazol-1-yl]-hexanoic acid ethyl ester (23 mg, 0.051 mmol)) in 1,4-dioxane (5 mL) and water (1 mL) was added LiOH (2.4 mg, 0.1 mmol) at room temperature. The solution was stirred at the same temperature for 4 hours. The solution was concentrated and water was added to the residue. The solution was acidified by 12N HCl in an ice-bath. The solid that preciptate out from the solution was collected by filtration. The solid was dried under vacuum and was confirmed to be the desirable product (10 mg, 46%). LCMS (ESMS): m/z 424.18 (M+H+).

Provenance & Evidence