L-Valine → HCID 44476488, compound

Participants

Reaction Steps

A mixture of L-valine (36.6 mg, 0.312 mmol) and sodium hydride (60%; 9.99 mg, 0.250 mmol) in dimethyl sulfoxide (DMSO) (2 ml) were stirred at room temp for 30 min. 1-Chloro-5-(5-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)isoquinoline (D7; 50 mg, 0.125 mmol) was added and the reaction mixture was stirred at 120° C. under nitrogen for 48 hr. The cooled reaction mixture was loaded onto an SCX column. The column was flushed with acetonitrile and then the desired product was eluted with 20% ammonia in acetonitrile. The solvent was removed in vacuo from the appropriate fractions to give an orange solid which was dissolved in DCM and washed with water. The organics were passed through a hydrophobic frit and the solvent was removed in vacuo to give the title compound as an orange solid (22 mg). MS (ES) C25H2535ClN4O4 requires 480. found 481 [M+H]+.

Provenance & Evidence