Dimethylformamide → HCID 58965023, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 4-amino-2-propylthiazolo[4,5-c]quinolin-7-ol acetate (318 mg, 1.0 mmol), cesium carbonate (1.3 g, 4.0 mmol), tetrabutylammonium bromide (322 mg, 1.0 mmol), and DMF (15 mL) was stirred at 75° C. for 10 minutes. 4-(Chloromethyl)thiazole hydrochloride (187 mg, 1.1 mmol) was added. Additional 4-(chloromethyl)thiazole hydrochloride (1 eq. total) was added in small portions over a period of 3 hours. The reaction mixture was poured into water (100 mL). A solid was isolated by filtration, allowed to dry, dissolved in dichloromethane, and then purified by HPFC eluting with a gradient of 0-25% CMA in chloroform over 1400 mL and then 25% CMA in chloroform over 600 mL. The resulting solid was recrystallized from acetonitrile to provide 200 mg of 2-propyl-7-[(thiazol-4-yl)methoxy]thiazolo[4,5-c]quinolin-4-amine as an off-white solid, mp 218.0-220.0° C. MS (APCI) m/z 357 (M+H)+; Anal. calcd for C17H16N4OS2.0.2H2O: C, 56.71; H, 4.59; N, 15.56. Found C, 56.66; H, 4.29; N, 15.45.

Provenance & Evidence