Hydrochloric Acid → 2-(8-(benzo[d]thiazol-2-ylcarbamoyl)-3,4-dihydroisoquinolin-2(1H)-yl)-5-((4-phenylpiperazin-1-yl)methyl)thiazole-4-carboxylic acid

Participants

Reaction Steps

Compound 62A (50 mg, 0.066 mmol) in DCM (3.5 ml) was treated with 2 N hydrogen chloride in ether (3.31 ml, 6.62 mmol) for 30 min. The reaction was concentrated and the residue was dissolved in THF (3 ml) and methanol (3 ml). NaOH (10% aq., 1 ml) was added. The resulting mixture was stirred overnight and concentrated. The residue was purified by purified by reverse phase HPLC (mobile phase: 0%-70% acetonitrile in 0.1% TFA aqueous solution during 40 min) to provide the title compound: 1H NMR (400 MHz, DMSO-D6) δ ppm 12.91 (1H, s), 8.02 (1H, d), 7.78 (1H, d), 7.70 (1H, d), 7.44-7.50 (2H, m), 7.41 (1H, t), 7.35 (1H, t), 7.20-7.27 (2H, m), 6.96 (2H, d), 6.84 (1H, t), 4.89 (2H, s), 4.73 (2H, s), 3.82 (2H, t), 3.45 (8H, s), 3.07 (2H, t). LCMS (APCI) m/e 611 (M+H).

Provenance & Evidence