Trifluoroacetic acid → HCID 178517216, compound

Participants

Reaction Conditions

Reaction Steps

Following the general method as outlined in Example 1, into a suspension of 5-iodo-1H-indole-2,3-dione in acetic acid in the presence of 5% TFA was added tert-butyl 2-{4-[(1S)-1-benzyl-2-(benzyloxy)-2-oxoethoxy]benzoyl}hydrazinecarboxylate. After stirring at 100° C., the reaction mixture was cooled to rt and a yellow solid precipitated out. Filtration on a fritté, washing with AcOH, water and drying under vacuo at 60° C. for 15 hrs gave 164 mg of the title compound (76%) as a yellow solid in 98.8% purity by HPLC (MaxPlot detection between 230 and 400 nm).

Provenance & Evidence