Hydrochloric Acid → HCID 56925059, compound

Participants

Reaction Steps

A solution of 7-(((S)-2,2-dimethyl-1,3-dioxolan-4-yl)methylamino)-4-(2-methyl-3-(1-oxoisoindolin-2-yl)phenyl)-9H-carbazole-1-carboxamide (Example 66-15, 50 mg, 0.089 mmol) in THF (1 mL) was treated with 2 M hydrochloric acid (4.46 mL, 8.92 mmol) and the mixture was stirred at rt for 1 h. The mixture was made basic with 1 M aqueous sodium hydroxide and extracted twice with DCM. The combined organic phases, along with some insoluble precipitate, were dried and concentrated. The residue was purified by column chromatography (eluting with a gradient from DCM to 90:9:1 DCM-methanol-28% aqueous ammonium hydroxide) to provide 7-(2,3-dihydroxypropylamino)-4-(2-methyl-3-(1-oxoisoindolin-2-yl)phenyl)-9H-carbazole-1-carboxamide as an orange solid (20 mg, 39%). 1H NMR (400 MHz, methanol-d4) δ 7.90 (1H, d, J=7.49 Hz), 7.79 (1H, d, J=7.77 Hz), 7.67-7.74 (2H, m), 7.58-7.62 (1H, m), 7.49-7.55 (2H, m), 7.42 (1H, dd, J=6.94, 1.94 Hz), 6.99 (1H, d, J=7.77 Hz), 6.86 (1H, d, J=8.32 Hz), 6.81 (1H, d, J=1.94 Hz), 6.45 (1H, dd, J=8.74, 1.80 Hz), 4.97 (2H, s), 3.88-3.93 (1H, m), 3.59-3.68 (2H, m), 3.36-3.39 (1H, m), 3.14-3.20 (1H, m), 1.95 (3H, s). Mass spectrum m/z 521.3 (M+H)+.

Provenance & Evidence