4-Nitrobenzoyl isothiocyanate → N-((3-bromo-5-(2-hydroxyethyl)-7-iodo-5H-chromeno[2,3-b]pyridin-5-yl)carbamothioyl)-4-nitrobenzamide

Participants

Reaction Conditions

Reaction Steps

A solution of 2-(5-amino-3-bromo-7-iodo-5H-chromeno[2,3-b]pyridin-5-yl)ethanol (0.930 g, 2.080 mmol) in THF (20.80 ml) was added cooled to 0° C. and solid 4-nitrobenzoyl isothiocyanate (0.442 g, 2.122 mmol) was added. The reaction mixture was stirred at 0° C. for 20 min. The reaction mixture was concentrated under reduced pressure to yield N-((3-bromo-5-(2-hydroxyethyl)-7-iodo-5H-chromeno[2,3-b]pyridin-5-yl)carbamothioyl)-4-nitrobenzamide as a yellow solid.

Provenance & Evidence