Ozone → (2-(4-(1,3-Dioxan-2-yl)-2-fluorophenyl)thiazolo[5,4-b]pyridine-5-yl)(phenyl)methanone

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Reaction Conditions

Reaction Steps

A solution of 2-(4-(1,3-dioxan-2-yl)-2-fluorophenyl)-5-(1-phenylvinyl)thiazolo[5,4-b]pyridine (2.66 g, 6.4 mmol) in 3:1 CH2Cl2/MeOH (128 mL) at −78° C. was treated with ozone for 15 min. The solution was then sparged with O2, dimethyl sulfide (18 mL) was added, and the bath was allowed to expire. The resulting solution was stirred at 25° C. for 3 d and then concentrated in vacuo. This residue was taken up in CH2Cl2 (400 mL) and sequentially washed with water and brine, then concentrated in vacuo to provide (2-(4-(1,3-dioxan-2-yl)-2-fluorophenyl)thiazolo[5,4-b]pyridine-5-yl)(phenyl)methanone as a yellow solid. MS (ESI) m/z: Calculated: 420.1; Observed: 421.1 (M++1).

Provenance & Evidence