Water → 4-[N-(tert-butyl)-N-(tert-butyldimethylsilyloxy)amino]-N-(8-hydroxyquinolin-5-yl)-benzamide

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Reaction Steps

To a solution of 0.15 g (0.464 mmol) of compound 2 in CH2Cl2 (2 mL) were added 0.11 g (0.561 mmol) of 1-(3-dimethylamino)propyl-3-ethylcarbodiimide hydrochloride, 0.03 g (0.232 mmol) of 4-dimethylaminopyridine, 2 mL of triethylamine, and 0.16 g (0.695 mmol) of 5-amino-8-hydroxyquinoline HCl salt. After stirring for 24 hours at room temperature, H2O and ethyl acetate were added. The organic layer was separated, dried over anhydrous MgSO4, filtered and concentrated under reduced pressure. The residue was purified by flash column chromatography (silica, Hex:EtOAc=1:1) to give 0.076 g of compound 9 in 35% yield.

Provenance & Evidence