1-Hydroxybenzotriazole → 8-[2,6-dichloro-3-[N-[3-[N-(3-methylcarbamoylphenyl)carbamoyl]propionyl]-N-methylamino]benzyloxy]-2-methylquinoline

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Reaction Steps

to amixture of 8-[3-[N-(3-carboxypropionyl)-N-methylamino]-2,6-dichlorobenzyloxy]-2-methylquinoline (139 mg), 3-amino-N-methylbenzamide (51.3 mg) and anhydrous dichloromethane (4 ml) were added 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (71.5 mg) and 1-hydroxybenzotriazole (54.6 mg). The mixture was stirred for 12 hours at ambient temperature ans washed with water. The organic layer was dried over magnesium sulfate and evaporated in vacuo. The residue was purifed by preparative thin-layer chromatography (chloroform-methanol) followed by pulverization with diethyl ether to give 8-[2,6-dichloro-3-[N-[3-[N-(3-methylcarbamoylphenyl)carbamoyl]propionyl]-N-methylamino]benzyloxy]-2-methylquinoline (103 mg) as an amorphous powder.

Provenance & Evidence