Triphenylphosphine → HCID 86654800, compound

Participants

Reaction Steps

300 mg (0.613 mmol) of 2-(3-{2-[3-(2-hydroxy-ethyl)-phenyl]-ethoxy}-4-methoxy-benzoylamino)-indane-2-carboxylic acid methyl ester (methyl ester intermediate of example 27) and triphenylphosphine (0.241 g, 0.920 mmol) were dissolved in THF (5 ml) and cooled in an ice bath. Diphenylphosphoryl azide (0.258 g, 0.920 mmol) and DIAD (0.198 g, 0.920 mmol) were added sequentially, the ice bath was removed and the mixture was stirred for 2 h at room temperature. The mixture was evaporated to dryness and purified by silica gel chromatography (HEP/EA gradient) to yield 0.188 g of the title compound.

Provenance & Evidence