N-methyl-2-oxoindoline-5-sulfonamide → [4-(3-{2-[5-Methylsulfamoyl-2-oxo-1,2-dihydro-indol-(3Z)-ylidenemethyl]-4,5,6,7-tetrahydro-1H-indol-3-yl}-propyl)-piperazin-1-yl]-acetic acid ethyl ester

Participants

Reaction Steps

{(4-[3-(2-formyl-4,5,6,7-tetrahydro-1H-indol-3-yl)-propyl]-piperazin-1-yl}-acetic acid ethyl ester (60 mg, 0.1 73 mmol) was condensed with 5-methylaminosulfonyloxindole (45 mg, 0.1 9 mmol, 1.1 eq.) following the procedure used in Example 1 above. The reaction mixture was purified by flash chromatography (dichloromethane/methanol 10/1) to give the desired product.

Provenance & Evidence