2-(Piperazin-1-yl)pyridine-5-boronic acid, pinacol ester → 1-cyclopentyl-N-[(4,6-dimethyl-2-oxo-1,2-dihydro-3-pyridinyl)methyl]-6-[6-(1-piperazinyl)-3-pyridinyl]-1H-indazole-4-carboxamide

Participants

Reaction Steps

The title compound was prepared in a similar manner as described for example 8 from 6-bromo-1-cyclopentyl-N-[(4,6-dimethyl-2-oxo-1,2-dihydro-3-pyridinyl)methyl]-1H-indazole-4-carboxamide (200 mg, 0.451 mmol) and 1-[5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-pyridinyl]piperazine (196 mg, 0.677 mmol). The product was collected as a white solid (92 mg, 37%). 1H NMR (400 MHz, DMSO-d6) δ ppm 11.54 (br. s., 1H) 8.64-8.67 (m, 1H) 8.60 (t, J=4.80 Hz, 1H) 8.35 (s, 1H) 8.03-8.09 (m, 2H) 7.84 (d, J=1.26 Hz, 1H) 6.89-6.99 (m, 1H) 5.89 (s, 1H) 5.27-5.35 (m, 1H) 4.39 (br. s., 1H) 4.38 (br. s., 1H) 3.41-3.56 (m, 4H) 2.69-2.91 (m, 4H) 2.22 (s, 3H) 2.07-2.20 (m, 6H) 1.97-2.06 (m, 2H) 1.85-1.93 (m, 2H) 1.65-1.74 (m, 2H). LC-MS (ES) m/z=526.3 [M+H]+

Provenance & Evidence