Ammonia → 3-(2-Amino-2-oxoethyl)-N-{2,4-dimethyl-5-[6-(pyridin-3-yl)-1H-imidazo[1,2-b]pyrazol-1-yl]-phenyl}-5-(pentafluoro-lambda6-sulphanyl)benzamide

Participants

Reaction Steps

85 mg (0.128 mmol) of the compound of Example 151 and 58 mg (0.154 mmol) of HATU were initially charged in 2 ml of DMF, and 67 μl (0.384 mmol) of N,N-diisopropylethylamine and 1.3 ml (0.640 mmol) of a 0.5 M solution of ammonia in THF were then added. After the reaction mixture had been stirred at RT for about 16 h, the entire mixture was separated into its components by preparative HPLC (Method 36). The product fractions were combined and concentrated to dryness on a rotary evaporator. For further purification, the product was triturated for 10 min at RT with a few ml of pentane/diisopropyl ether 4:1. The solid was separated off and dried under high vacuum. This gave 9 mg (11% of theory, 95% pure) of the title compound.

Provenance & Evidence