Tetrahydrofuran → HCID 19906417, compound

Participants

Reaction Steps

To a mixture of methyl 4-[7-(3-carboxypropyl)-naphth-1-ylmethyl]-3-methoxybenzoate (2.40 g), tetrahydrofuran (70 ml) and triethylamine (0.681 g) was added isobutyl chloroformate (0.87 ml) After stirring for 30 min, dimethylamine (2.0 g) was bubbled into the solution and stirring continued for 18 h. The reaction mixture was partitioned between ethyl acetate and 1N hydrochloric acid. The organic layer was washed (1N hydrochloric acid, aqueous sodium bicarbonate (5% w/w), brine) and dried (MgSO4). Evaporation and flash chromatography, eluting with ethyl acetate:methylene chloride (0:1, 1:10 and 2:10, successively), to give methyl 4-[7-(3-dimethylcarbamoylpropyl)naphth-1-ylmethyl]-3-methoxybenzoate (1.10 g, 43%) as a glassy solid; MS(CI), m/e=419(M+H).

Provenance & Evidence