Hydrochloric Acid → 5-Chloro-1H-indole-2-carboxylic acid [2-(4-hydroxy-piperidin-1-yl)-2-oxo-ethyl]-amide

Participants

Reaction Steps

4-Hydroxypiperidine (0.83 mmol) and [(5-chloro-1H-indole-2-carbonyl)-amino]-acetic acid (0.8 mmol) were coupled according to procedure A (dimethylformamide- dichloromethane reaction solvent) with the following workup: the reaction mixture was stirred with ethyl acetate and aqueous 2N HCl, the resulting suspension filtered and the collected solid washed successively with aqueous 2N HCl, aqueous 2N NaOH, ether and dried : Yield 180 mg, 68%; TSPMS 336/338 (MH+, 100%);

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