Hydrochloric Acid → HCID 86658579, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of acetal 263 (2.95 g, 5.61 mmol) in AcOH/H2O (20/20 mL) was added concentrated HCl (2 mL) and the reaction mixture was heated at 90° C. for 1 h. The reaction mixture was concentrated, diluted with water and 4M NaOH to pH 10 to form a precipitate that was collected by filtration, washed with water and dried under vacuum. The material was then purified by Biotage (SNAP 100 g cartridge; 2% of ammonium hydroxide in MeOH/DCM: 0/100 to 15/85, over 20 CV) to afford the title compound 264 (1.2 g, 2.66 mmol, 47% yield) as a brown solid. MS (m/z): 484.51 (M+H).

Provenance & Evidence