Potassium Hydroxide → HCID 112500221, compound

Participants

Reaction Steps

To a solution of 0.8 g of the compound obtained in Step C (1.03 mmol) in 2 mL of methanol, there are added 1.55 mL of a 1M solution of potassium hydroxide in methanol (1.55 mmol). The batch is stirred at ambient temperature for 30 minutes. The reaction mixture is then diluted with dichloromethane and successively washed with 1M aqueous HCl solution, saturated aqueous NaHCO3 solution and then brine until neutral. The organic phase is then dried over MgSO4, filtered and evaporated. The crude product thereby obtained is purified by chromatography over silica gel using dichloromethane and methanol as eluants. The solid thereby obtained is dissolved in a mixture of water/acetonitrile until dissolution is complete, filtered and then lyophilised.

Provenance & Evidence