Piperidine → HCID 21106538, compound

Participants

Reaction Steps

4-(2-tert-Butyl-5-methyl-2H-pyrazol-3-ylamino)-2-(4-chlorophenyl)-2H-phthalazin-1-one (0.10 g, 0.25 mmol), piperidine (0.025 g, 0.29 mmol), NaOtBu (0.033 g, 0.34 mmol), tris-(dibenzylideneacetone)-dipalladium (0.06 g, 0.008 mmol) and 2-(di-t-butylphosphino)-biphenyl (0.004 g, 0.014 mmol) under argon were heated to 100° C. for 19 hours, and then allowed to cool to RT. The solvent was evaporated in vacuum, the residue was diluted in H2O (30 ml) and the resulting solid was collected by filtration. Purification of the raw product by preparative HPLC gave the title compound (0.014 g, 13% yield). 1H-NMR: (400 MHz, D6-DMSO) 8.35 (1H, d), superimposed by 8.34 (1H, s), 8.29 (1H, d), 8.01 (1H, t), 7.92 (1H, t), 7.31 (2H, d), 6.92 (2H, d), 5.94 (1H, s), 3.16 (4H, m), 1.61 (4H, m), 1.55 (9H, s), superimposes 1.54 (2H, m); MS (ESI+)=457.16 (M+H)+.

Provenance & Evidence