5-Chloro-1H-indole-2-carboxylic acid → HCID 9843776, compound

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2-Amino-1-(3-hydroxy-azetidin-1-yl)-3-phenyl-propan-1-one hydrochloride (1.18 mmol) and 5-chloro-1H-indole-2-carboxylic acid (1.18 mmol) were coupled according to Procedure A (4:1 dichloromethane-dimethylformamide reaction solvent) and the product purified by chromatography on silica gel eluted with 25%, 50%, 75% and 100% ethyl acetate-hexanes giving the title substance as a colorless foam (104 mg, 22%). A mixture (180 mg) of less polar products was also isolated. Title substance:

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