1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → (6R)-9-fluoro-2,11,15,19,20,23-hexazapentacyclo[15.5.2.17,11.02,6.020,24]pentacosa-1(23),7,9,17(24),18,21-hexaene-16,25-dione

Participants

Reaction Steps

To a solution of (R)-5-(2-(1-(3-aminopropyl)-5-fluoro-2-oxo-1,2-dihydropyridin-3-yl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (95 mg, 0.24 mmol) in 1:2 DMF/DCM (9 mL) was added EDCI (0.14 g, 0.71 mmol) followed by HOBT (96 mg, 0.71 mmol) at ambient temperature. After stirring for 10 minutes, TEA (0.099 mL, 0.71 mmol) was added to the reaction mixture and stirred for 6 hours. The reaction mixture was treated with EtOAc, washed with saturated NH4Cl, saturated NaHCO3, and brine, then dried (MgSO4), filtered, concentrated. The crude material was purified by silica column chromatography, eluting with 4% MeOH/DCM to yield the title product (35 mg, 39% yield). MS (apci) m/z=383.2 (M+H).

Provenance & Evidence