Hydrochloric Acid → Methyl[4,6-diamino-2-(1-cycloheptylmethyl-1H-pyrazolo[3,4-b]pyridin-3-yl)pyrimidin-5-yl]-carbamate

Participants

Reaction Steps

300 mg (1.0 mmol) of the compound of Example 1A and 224 mg (1.1 mmol) of cycloheptylmethyl methansulfonate (preparation: see J. Med. Chem. 2000, 43(26), 5017-5029) were initially charged in 5 ml of dimethylformamide, 354 mg (1.1 mmol) of cesium carbonate were added and the resulting mixture was stirred at RT overnight. 0.5 ml of 1N hydrochloric acid was added, and the entire solution was separated by HPLC (Method 5). The appropriate fractions were concentrated on a rotary evaporator, and the residue was dried under high vacuum. This gave 2.8 mg (0.7% of theory) of the target compound.

Provenance & Evidence