Cyclopropylamine → HCID 21078792, compound

Participants

Reaction Steps

2′-Methyl-5′-(5-methyl-1,3,4-oxadiazol-2-yl)-1,1′-biphenyl-4-carboxylic acid (59 mg, 0.2 mmol), cyclopropylamine (11 mg, 0.2 mmol) and 1-(3-dimethylaminopropyl)-3-ethyl carbodiimide hydrochloride (0.2 mmol) were suspended in dry DCM (7 ml) and stirred at room temperature under nitrogen for 20 h. Cyclopropylamine (33 mg, 0.6 mmol) was added and the reaction stirred at room temperature for 21 h. 1-Hydroxybenzotriazole (27 mg, 0.2 mmol) was added and the reaction heated at 35° C. for 70 h. Water (10 ml) was added to the cooled reaction, and the organic fraction separated. The organic phase was absorbed onto a silica flash column and eluted with DCI/ethanol/ammonia (300:8:1). Solvent was evaporated from the product fractions under vacuum to give N-(cyclopropyl)-2′-methyl-5′-(5-methyl-1,3,4-oxadiazol-2-yl)-1,1′-biphenyl-4-carboxamide (26 mg, 39%).

Provenance & Evidence