Triacetoxyperiodinane → (1R)-4'-(4-Chlorophenyl)-2',3',9'-trimethylspiro[cyclopropane-1,6'-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine]-2-carbaldehyde

Participants

Reaction Steps

To a solution of ((1S,2R)-4′-(4-chlorophenyl)-2′,3′,9′-trimethylspiro[cyclopropane-1,6′-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine]-2-yl)methanol (Compound 210; 75 mg, 0.188 mmol) in DCM (2 mL) at 0° C. was added Dess-Martin periodinane (96 mg, 0.226 mmol). After 1 h at 0° C., extra Dess-Martin periodinane (96 mg, 0.226 mmol) was added, and the reaction was warmed to rt for 2 h. Then the reaction was diluted with diethylether and filtered. The filtrate was concentrated to dryness under vacuum, and the residue was used without purification in the next step. LRMS (M+H)+: 397 m/z.

Provenance & Evidence