Cesium carbonate → Methyl 4-{[cyclopentyl(4-{[2-(2-methylpropyl)-5-oxo-5,6-dihydro-4H-1,3,4-oxadiazin-4-yl]-methyl}phenyl)acetyl]amino}-2,3-dihydro-1H-indene-2-carboxylate

Participants

Reaction Steps

100 mg (0.213 mmol) of methyl 4-({[4-(bromomethyl)phenyl](cyclopentyl)acetyl}amino)-2,3-dihydro-1H-indene-2-carboxylate were dissolved in 3.5 ml of DMF, and 55 mg (0.213 mmol) of 2-(2-methylpropyl)-4H-1,3,4-oxadiazin-5(6H)-one (Example 22A) and 76 mg (0.234 mmol) of cesium carbonate were added. The reaction mixture was stirred at room temperature for 3 d. The reaction mixture was then concentrated under reduced pressure, and the residue was purified by preparative HPLC. This gave 8 mg (8% of theory) of the title compound.

Provenance & Evidence