Diisopropylethylamine → HCID 86650466, compound

Participants

Reaction Steps

DIEA (0.009 mL, 0.053 mmol) was added to 8-hydroxy-3-carboxy-coumarin (0.010 g, 0.048 mmol) and HATU (0.02 g, 0.053 mmol) in 0.5 mL of DMF with constant stirring at room temperature until a clear solution resulted. Subsequently, 2-(3-Amino-phenyl)-pyrrole-1-carboxylic acid tert-butyl ester (0.013 g, 0.048 mmol) was added and allowed to react overnight. DMF was removed under vacuum and the reaction was resuspended in DMSO. The crude product was purified on a Parallex Flex parallel preparative reverse phase HPLC instrument (Biotage) using a solvent gradient of 10-95% ACN/H2O with 0.05% TFA at a flow rate of 20 mL/min. UV absorbance was monitored at 254 nm and the fractions corresponding to the product peak were collected and the solvent removed under vacuum to give 0.014 g of product in 62% yield: LCMS (ESI) m/z 447 (MH+).

Provenance & Evidence