Sodium Cyanide → (3R,4S)-4-(4-{[tert-butyl(dimethyl)silyl]oxy}phenyl)-3-[(3S)-3-(4-fluorophenyl)-3-hydroxypropyl]-1-(4-iodophenyl)azetidin-2-one

Participants

Reaction Conditions

Reaction Steps

To a solution of 15 mg (0.022 mmol) (1S)-3-[(2S,3R)-2-(4-{[tert-butyl(dimethyl)silyl]oxy}phenyl)-1-(4-iodophenyl)-4-oxoazetidin-3-yl]-1-(4-fluorophenyl)propyl acetate (Alternate Example 6, step A) in 1 mL anhydrous methanol under nitrogen atmosphere was added 2 mg of sodium cyanide. The reaction mixture was heated at 50° C. for 1.25 hr at which time the volatiles were removed by a nitrogen stream. The residue was purified by prep. Tlc eluting with EtOAc/hexanes (1/3) to afford the title compound. m/z (ES) 632.3 (MH+), 614.3 (MH−H2O+).

Provenance & Evidence