Dichloromethane → 1-(5-Tosyl-2,3,4,5-tetrahydro-1h-pyrido[4,3-b]indol-7-yl)-4-(5-(trifluoromethyl)pyridin-2-yl)pyridin-2(1h)-one trifluoroacetic acid salt

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tert-Butyl 7-(2-oxo-4-(5-(trifluoromethyl)pyridin-2-yl)pyridin-1(2H)-yl)-5-tosyl-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate (165 mg, 0.248 mmol) was stirred in TFA (3 mL) and methylene chloride (1 mL) for 3 h. Concentration of the solution under reduced pressure provided the title compound (164 mg, 100%) as a yellow oil; ESI MS m/z 565 [M+H]+.

Provenance & Evidence