Sodium Carbonate → N1-[1-[4'-(acetylamino)-4-biphenylyl]-2-(1-pyrrolidinyl)ethyl]-N2-(3,4-dichlorophenyl)-N1-methyl-N2-[2-(methyloxy)ethyl]glycinamide

Participants

Reaction Conditions

Reaction Steps

N1-[1-(4-bromophenyl)-2-(1-pyrrolidinyl)ethyl]-N2-(3,4-dichlorophenyl)-N1-methyl-N2-[2-(methyloxy)ethyl]glycinamide (150 mg, 0.276 mmol) was dissolved in 1 mL of 1,4-dioxane and combined with [4-(acetylamino)phenyl]boronic acid (74 mg, 0.413 mmol), Pd(dppf)2Cl2 (6.8 mg, 0.008 mmol), and 825 uL of 1M Na2CO3 in water in a glass reaction tube (0.5-2.0 mL Smith Process Vial) that was equipped with a magnetic stir bar. The tube was fitted with a rubber septum and hermetically sealed with a crimped metal foil seal. Using a Personal Chemistry Emrys Optimizer microwave unit, the reaction mixture was magnetically stirred and irradiated with microwave energy of dynamically adjusted power in order to maintain a temperature of 160° C. for 360 seconds. The reaction mixture was diluted with 2 mL of DMSO and filtered through a 0.2 micron PTFE filter and purified by preparative HPLC (Waters C18RP Xterra 5 micron 50×100 mm column, 45 mL/min flow rate, A: 0.1% TFA in acetonitrile B: 0.1% TFA in water, A: 10 to 95% over 20 min, UV detection at 215 nm) to give 47.7 mg (19%) of the title compound as a brown solid. MS (ES) m/e 598, 600 [M+H]+.

Provenance & Evidence