Hydrochloric Acid → HCID 178516633, compound

Participants

Reaction Steps

To an ice-cold solution of 5-[3-(N-hydroxyamidino)phenyl]-1H-naphtho[1,2-b][1,4]diazepin-2,4(3H,5H)-dione (310 mg, 0.94 mmol) and 1,8-diazabicyclo[5,4,0]-7-undecene (561 □L, 3.75 mmol) in acetonitrile (5.7 mL) was added dropwise, a solution of thiocarbonyldiimidazole (251 mg, 1.41 mmol) in acetonitrile (6 mL). The mixture was stirred at room temperature for 1.5 hours, to which was added 1M hydrochloric acid, and extracted with chloroform. The organic layer was washed with saturated brine, dried over anhydrous sodium sulfate. The solvent was removed under reduced pressure, and the residue was purified by silica gel column chromatography (hexane/ethyl acetate=1/1˜0/1), to give the titled compound (161 mg, yield 41%).

Provenance & Evidence