Trifluoroacetic acid → HCID 86687777, compound

Participants

Reaction Steps

A vial was charged with 4-chloro-N-(2,4-dimethoxybenzyl)-N-(thiazol-2-yl)quinazoline-7-sulfonamide (Intermediate KKKK; 0.075 g, 0.157 mmol) and DMF (0.786 ml). (R)-2-(methoxymethyl)pyrrolidine (0.036 ml, 0.314 mmol) was added followed by Hunig's base (0.082 ml, 0.472 mmol). The reaction was stirred for 30 seconds at room temperature. TFA (0.2 ml, 2.60 mmol) was added and the reaction was stirred overnight at room temperature. The reaction was filtered through a frit, concentrated, and purified via Gilson HPLC (5-50% MeCN:H2O w/ 0.1% TFA modifier). The product fractions were passed through an Isolute SCX ion exchange column (pre-wetted with methanol). The column was flushed with methanol, then the product was liberated by flushing the column several times with 2.0 M ammonia in methanol. The product-containing filtrate was concentrated to afford (R)-4-(2-(methoxymethyl)pyrrolidin-1-yl)-N-(thiazol-2-yl)quinazoline-7-sulfonamide as an off-white solid. (ESI) 406.2 (M+H)+.

Provenance & Evidence