Cesium carbonate → HCID 25253041, compound

Participants

Reaction Steps

0.17 g of 4-[3-(3,4-dimethoxybenzyl)-6-hydroxy-2,4-dioxo-3,4-dihydroquinazolin-1(2H)-yl]piperidine-1-carbaldehyde obtained in stage 1.8 and 0.25 g of Cs2CO3 in 3 ml of DMF are stirred for 15 min at AT. 0.056 g of bromoacetonitrile is added and the reaction mixture is subsequently irradiated under a microwave field at 100° C. for 15 min. It is filtered and evaporated under reduced pressure. The residue is chromatographed on silica gel, elution being carried out with an MeOH/DCM mixture, (1/99, v/v) as far as (4/96, v/v), to give 0.112 g of the expected product.

Provenance & Evidence