1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → HCID 68512122, compound

Participants

Reaction Steps

EDCI (47 mg, 0.24 mmol) was added to a stirred mixture of 2-(4-fluorophenyl)-3-oxo-2,3-dihydropyridazine-4-carboxylic acid (57 mg, 0.24 mmol, prepared according to the procedure for Example 19, Step C), HOBt-hydrate (38 mg, 0.24 mmol), and DIEA (0.070 mL, 0.404 mmol) in DCM (1 mL) at ambient temperature, and the reaction was stirred for 15 minutes at ambient temperature. 1-(4-Methoxybenzyl)-4-(4-amino-2-fluorophenoxy)-N-(1-(2-methoxyethyl)piperidin-4-yl)-1H-pyrazolo[3,4-b]pyridin-3-amine (42 mg, 0.0807 mmol) was added, and the resulting solution was stirred for 2 days at ambient temperature. The crude reaction mixture was loaded directly on to a preparative TLC plate (2 mm thickness) and eluted with 10% MeOH/DCM. The product was obtained as a waxy solid (45 mg, 76%). LRMS (APCI+): 100% purity, 220 nm, m/z 737 (M+1) detected.

Provenance & Evidence