1-(2-Imidazol-1-yl-ethyl)-piperazine → 4-({3-chloro-4-[(1-methyl-1H-imidazole-2-yl)thio]phenyl}amino)-7-{4-[2-(1H-imidazole-1-yl)ethyl]piperazin-1-yl}-6-methoxyquinoline-3-carbonitrile

Participants

Reaction Conditions

Reaction Steps

Following the procedure of Example 11, a mixture of 220 mg (0.5 mmol) of 4-[3-chloro-4-(1-methyl-1H-imidazole-2-ylsulfanyl)-phenylamino]-7-fluoro-6-methoxyquinoline-3-carbonitrile and 290 mg (1.6 mmol) of 1-(2-imidazole-1-yl-ethyl)piperazine in 1.2 mL of 1-methyl 2-pyrrolidinone is heated at 105° C. for 20 hours to yield the crude product. Purification by silica gel chromatography (gradient 95:5methylene chloride/methanol to 85:15 methylene chloride/methanol) gives 210 mg of 4-({3-chloro-4-[(1-methyl-1H-imidazole-2-yl)thio]phenyl}amino)-7-{4-[2-(1H-imidazole-1-yl)ethyl]piperazin-1-yl}-6-methoxyquinoline-3-carbonitrile as a beige solid, mp 251-253° C.

Provenance & Evidence