Lithium iodide → N-({4'-[(1-benzofuran-2-ylcarbonyl)amino]-1,1'-biphenyl-4-yl}sulfonyl)-N-methyl-D-valine

Participants

Reaction Steps

To 0.13 g of methyl N-({4′-[(1-benzofuran-2-ylcarbonyl)amino]-1,1′-biphenyl-4-yl}sulfonyl)-N-methyl-D-valinate in 12 mL ethyl acetate was added 0.67 g of lithium iodide and the mixture was refluxed overnight. The reaction was diluted with ethyl acetate and 1N HCl. The organic layer was washed with water, sodium thiosulfate solution, water and brine, dried over Na2SO4, filtered, and concentrated to provide 0.099 g of N-({4′-[(1-benzofuran-2-ylcarbonyl)amino]-1,1′-biphenyl-4-yl}sulfonyl)-N-methyl-D-valine. Yield 77.9%. m.p. 239-241° C.; MS 505.1(M−H)−.

Provenance & Evidence