N-Propyl-Methyl Piperidinium Bis(trifluoroMethylsulfonyl)Imide → (S)-ethyl 2-tert-butoxy-2-(7-(4-chlorophenyl)-5-methyl-2-(2-(1-(trifluoromethyl)-1H-indazol-5-yl)pyridin-4-yl)benzo[d]thiazol-6-yl)acetate

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To a solution of (S)-ethyl 2-(2-(2-(1H-indazol-5-yl)pyridin-4-yl)-7-(4-chlorophenyl)-5-methylbenzo[d]thiazol-6-yl)-2-tert-butoxyacetate (40 mg, 0.065 mmol) in CS2 (1.5 mL), was added 1-Trifluoromethyl-3,3-dimethyl-1,2-benziodoxole (64 mg, 0.195 mmol), bis(trifluoromethane)sulfonimide (27 mg, 0.0975 mmol). The reaction mixture was heated at 60° C. in sealed microwave vial for 1d. The reaction mixture was washed by saturated NaHCO3, extracted by EtOAc, the organic phase was dried over MgSO4, filtered, concentrated down, purified by silica gel column, eluting by 0-50% EtOAc in hexanes to give the product. LCMS-ESI+: calc'd for C35H30ClF3N4O3S: 679.2 (M+H+); found: 679.2.

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