Sodium Hydroxide → HCID 178525328, compound

Participants

Reaction Steps

Into a suspension of methyl 3-(4-{[(4-{[2-(5-iodo-2-oxo-1,2-dihydro-3H-indol-3-ylidene)hydrazino]carbonyl}phenyl)amino]sulfonyl}phenyl)propanoate (166 mg, 0.26 mmol) in THF/H2O (2/1) (6 mL) was added NaOH (1.0 N, 1.3 mL). The resulting solution was stirred at rt for 1 hr and quenched with HCl (5 N, 1.3 mL). A yellow solid precipitated out. Filtration, washing with water (4×2 mL) and drying under vacuo at 60° C. for 18 hrs gave the title compound as a yellow powder (133 mg, 81%) in 99.3% purity by HPLC (MaxPlot detection between 230 and 400 nm).

Provenance & Evidence