Diisopropylethylamine → 1-[5-tert-Butyl-2-(3-chloro-4-triisopropylsilanyloxy-phenyl)-2H-pyrazol-3-yl]-3-{(1S,4R)-4-[3-((S)-1-methyl-pyrrolidin-2-yl)-[1,2,4]triazolo[4,3-a]pyridin-6-yloxy]-1,2,3,4-tetrahydro-naphthalen-1-yl}-urea

Participants

Reaction Steps

A mixture of Intermediate E (145 mg, 0.40 mmol) and [5-tert-butyl-2-(3-chloro-4-triisopropylsilanyloxy-phenyl)-2H-pyrazol-3-yl]-carbamic acid 2,2,2-trichloro-ethyl ester (WO2011/154734A1, which is incorporated herein by reference, 251 mg, 0.420 mmol) in 1,4-dioxane (4 mL) and DIPEA (110 μL, 0.63 mmol) was stirred at 90° C. for 5.5 h. The cooled mixture was concentrated in vacuo. The residue was purified by FCC, using 0-12% MeOH in DCM, to give the title compound (288 mg, 89%). LCMS (Method 3): Rt 3.85 min, m/z 811 [MH+].

Provenance & Evidence