Sodium Hydroxide → HCID 67520572, compound

Participants

Reaction Steps

Pd on carbon (5 wt %, 0.015 g) was added to a solution of 6-(6,7-dimethoxy-3-nitroquinolin-4-yloxy)-1-naphthoic acid (0.149 g, 0.354 mmol) in MeOH (30 mL). The system was purged with H2 (g) and stirred under a H2 atmosphere at RT for 21 h to afford a thick suspension. The pH of the reaction was adjusted to 6-7 with 2N NaOH (aq), and Pd on carbon (5 wt %, 0.025 g) was added to the resulting solution. The mixture was purged with H2 then stirred under a H2 atmosphere at RT for 3 days (additional Pd on carbon (5 wt %, 0.025 g) was added after the first and second days). The mixture was filtered through a pad of Celite and the filtrate was concentrated to afford 6-(3-amino-6,7-dimethoxyquinolin-4-yloxy)-1-naphthoic acid as a brown solid. MS (ESI, pos. ion) m/z: 391.1 (M+H). Mass Calc'd for C22H18N2O5: 390.

Provenance & Evidence