Sodium Iodide → benzhydryl 1-[(Z)-[2-[[(2R,3S)-2-(azidomethyl)-4-oxoazetidin-3-yl]amino]-1-[2-[(2-methylpropan-2-yl)oxycarbonylamino]-1,3-thiazol-4-yl]-2-oxoethylidene]amino]oxycyclopropane-1-carboxylate

Participants

Reaction Conditions

Reaction Steps

To a solution of benzhydryl 1-(((Z)-(1-(2-((tert-butoxycarbonyl)amino)thiazol-4-yl)-2-(((2S,3S)-2-(((methylsulfonyl)oxy)methyl)-4-oxoazetidin-3-yl)amino)-2-oxoethylidene)amino)oxy)cyclopropanecarboxylate (1.3 g, 1.82 mmol) in DMF (20 ml) was added NaI (0.82 g, 5.5 mmol) and sodium azide (0.83 g, 12.8 mmol). After stirring at 60° C. for 6 h, the reaction mixture was quenched with ice cold water and extracted with EtOAc. Combined organic layers were washed with water, brine, dried over anhydrous Na2SO4, concentrated in vacuo. The crude residue was purified via silica gel chromatography (EtOAc-heptane) to afford the title compound (689 mg, 57%). LCMS: R=1.02 min, m/z=661.1 (M+1), Method 2m_acidic.

Provenance & Evidence