Triacetoxyperiodinane → HCID 131730334, compound

Participants

Reaction Steps

To a solution of Cis(±)-ethyl 2-(4-{[(3,4-dichloro-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}-3-methoxypiperidin-1-yl)-4-(hydroxymethyl)-1,3-thiazole-5-carboxylate (0.63 g, 1.3 mmol, Example 143) in methylene chloride was added Dess-Martin periodinane (0.61 g, 1.4 mmol). After 1 hr stirring at room temperature the reaction was complete. The crude reaction mixture was washed with water (×2) and brine, followed by drying with MgSO4 and concentrating to a minimal volume of methylene chloride after which it was directly deposited on a silica gel flash column (gradient elution to 1:1 EtOAc in CH2 Cl2). Pure fractions concentrated to clean, yellow solid (0.56 g). NMR: 1.29 (t, 3 H) 1.75 (s, 2 H) 2.18 (s, 3 H) 3.38 (s, 4 H) 3.44 (s, 1 H) 3.57 (s, 1 H) 4.03 (d, 1H) 4.22-4.35 (m, 4 H) 7.15 (d, 1 H) 10.31 (s, 1 H) 12.16 (s, 1 H).

Provenance & Evidence