Lithium Hydroxide → 4-({[(5-Chloro-2-thienyl)sulfonyl]amino}carbonylamino)benzoic acid

Participants

Reaction Steps

To a suspension of methyl 4-({[(5-chloro-2-thienyl)sulfonyl]amino}carbonylamino)benzoate (56 mg, 0.15 mmol) in methanol (1 mL) and acetonitrile (1 mL) was added 1N LiOH (0.16 mL, 0.16 mmol). The resulting solution was stirred at room temp for 21 hr, then an additional 0.32 mL 1N LiOH was added and the reaction was stirred at 40° C. for another 21 hr til complete. Concentration in vacuo gave crude 4-({[(5-chloro-2-thienyl)sulfonyl]amino}carbonylamino)benzoic acid (69 mg). ES-MS (M+H)+=361.

Provenance & Evidence