Dicyclohexylcarbodiimide → HCID 58556929, compound

Participants

Reaction Steps

PS-DCC (798 mg, 0.998 mmol, loading: 1.25 mmol/g) was suspended in dry THF (10 ml). 2-(3-(Methylcarbamoyl)phenylamino)-2-phenylacetic acid hydrochloride (I9) (160 mg, 0.50 mmol), HOBT (153 mg, 0.10 mmol), and (R)-quinuclidin-3-ol (190 mg, 1.50 mmol) were added, and the mixture was shaken at room temperature for 16 hours (UPLC-MS: complete conversion). PS-DCC was removed by filtration and washed with THF and EtOAc. The filtrate was evaporated and the resulting residue was dissolved in EtOAc and washed with NaHCO3, water and brine. The organic layer was separated, dried over Na2SO4, filtered and evaporated. The resulting oil (196 mg, quantitative yield, mixture of diastereomers) was used for the next step without any further purification.

Provenance & Evidence