Trimethylsilyl isocyanate → HCID 9803758, compound

Participants

Reaction Steps

To a solution of 2-(4'-fluoro-4-biphenylylmethyl)-6-[2-(N-hydroxyamino)ethoxy]-1-oxo-1,2,3,4-tetrahydroisoquinoline (~22.5 mmol) in 1,4-dioxane (50 ml) and methylene chloride (30 ml), is added trimethylsilylisocyanate (3.36 ml). The reaction mixture is stirred at room temperature overnight and is subsequently diluted with H2O (500 ml). The resulting solution is extracted with EtOAc (2×400 ml) and the combined EtOAc portions washed with 2N HCl (800 ml), saturated NaCl solution (800 ml), dried over MgSO4, and concentrated in vacuo. The resulting solid is recrystallized from EtOAc/hexanes to give 2-(4'-fluoro-4-biphenylylmethyl)-6-[2-(N-aminocarbonyl-N-hydroxyamino)-ethoxy]-1-oxo-1,2,3,4-tetrahydroisoquinoline, m.p. 171°-172°.

Provenance & Evidence