Triethylamine → HCID 54674797, compound

Participants

Reaction Steps

216 mg (0.98 mmol) of 2-(4-Allylpiperazin-1-yl)pyrimidin-5-ylamine from Example 16.2 and 215 mg (0.98 mmol) of 4-isopropylbenzenesulfonyl chloride were dissolved in 20 ml of tetrahydrofuran at room temperature, after which 0.4 ml (3.0 mmol) of triethylamine was added dropwise and the mixture was stirred at room temperature overnight. After the solvent had been evaporated down to dryness, water was added to the resulting residue. The aqueous reaction mixture was made acid using 1N aqueous hydrochloric acid and extracted twice with diethyl ether. The aqueous phase was made alkaline to pH 9-10, using a 1N solution of sodium hydroxide and then extracted three times with diethyl ether. The combined organic phases were dried over sodium sulfate. The residue which was obtained after filtering off the drying agent and evaporating the solvent down to dryness was thoroughly stirred with a mixture composed of heptane and diethyl ether, filtered off with suction and dried, with 71 mg (18% of theory) of the title compound being obtained.

Provenance & Evidence