Hydrochloric Acid → HCID 86690982, compound

Participants

Reaction Conditions

Reaction Steps

50 mg (0.17 mmol) of the compound of Example 6A and 73 mg (0.17 mmol) of the compound of Example 30A were reacted and worked up analogously to the procedure of Example 16. In this manner, 118 mg (98% of theory) of the Boc-protected intermediate tert-butyl {3-[3-({4-methyl-3-[6-(pyridin-3-yl)-1H-imidazo[1,2-b]pyrazol-1-yl]phenyl}carbamoyl)-5-(pentafluoro-λ6-sulphanyl)phenoxy]propyl}carbamate were obtained. This compound was dissolved in 3 ml of 1,4-dioxane and 1 ml of methanol, 0.13 ml (0.52 mmol) of a 4 M solution of hydrogen chloride in 1,4-dioxane was added and the mixture was stirred at 80° C. for 1 h. The mixture was then concentrated under reduced pressure and the residue was purified by preparative HPLC (Method 18). The product-containing fractions were combined and concentrated under reduced pressure, and the residue was dissolved in ethyl acetate and washed successively with saturated potassium carbonate solution and saturated sodium chloride solution. The organic phase was dried over sodium sulphate, filtered and concentrated under reduced pressure. Drying of the residue gave 41 mg (38% of theory) of the title compound.

Provenance & Evidence