Trifluoroacetic acid → HCID 178510552, compound

Participants

Reaction Steps

This was prepared using the same procedure as for (4-(6-bromo-7-(4-(pyridin-3-ylmethyl)piperazin-1-yl)-3H-imidazo[4,5-b]pyridin-2-yl)phenyl)methanamine, but here using tert-butyl (6-bromo-7-(4-(pyridin-3-ylmethyl)piperazin-1-yl)-3H-imidazo[4,5-b]pyridin-2-yl)methylcarbamate (10 mg, 0.020 mmol), TFA (0.2 mL) and CH2Cl2 (1 mL). The same purification procedure gave the desired product (7 mg, 88%) as a colourless solid; δH (500 MHz, DMSO-d6) 2.60 (s, br, 4H, piperazine N(CH2)2), 3.57 (s, br, 4H, piperazine N(CH2)2), 3.62 (s, 2H, NCH2Ar), 4.04 (s, br, 2H, CH2NH2), 7.38 (dd, J=7.7, 4.7 Hz, 1H, pyridine H-5), 7.77 (dt, J=7.8, 1.7 Hz, 1H, pyridine H-4), 8.24 (s, 1H, imidazo[4,5-b]pyridine H-5), 8.50 (dd, J=4.7, 1.5 Hz, 1H, pyridine H-6), 8.56 (d, J=1.6 Hz, 1H, pyridine H-2);

Provenance & Evidence