1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → 5-(2,6-Dichloro-phenylmethanesulfonyl)-3-[1-[3,5-dimethyl-4-((s)-3-pyrrolidin-1-ylmethyl-piperidine-1-carbonyl)-1h-pyrrol-2-yl]-meth-(z)-ylidene]-1,3-dihydro-indol-2-one

Participants

Reaction Steps

A mixture of 5-[5-(2,6-dichloro-phenylmethanesulfonyl)-2-oxo-1,2-dihydro-indol-(3Z)-ylidenemethyl]-2,4-dimethyl-1H-pyrrole-3-carboxylic acid (0.2 g, 0.4 mmol), HOBt (54 mg, 1 eq.), EDAC (77 mg, 1 eq.) in DMF (1.5 mL) was stirred at rt for 10 mins. To the mixture was added (R)-3-pyrrolidin-1-ylmethyl-piperidine (0.2 g, 3 eq.). After stirring at rt for over the weekend, the precipitate was collected by vacuum filtration, washed with water, sodium bicarbonate and water. The solid was then purified on a silica gel column to give 101 mg (46%) of the titled compound.

Provenance & Evidence