Lithium Hydroxide → HCID 53373031, compound

Participants

Reaction Steps

Aqueous LiOH solution (1M)(0.75 mg, 0.018 mmol) was added to a solution of 4-{1-[(3-methyl-1,2-oxazol-4-yl)carbonyl]-5-oxo-7-(pyridin-3-yl)-2,3-dihydro-1H,5H-imidazo[1,2-a]pyrrolo[1,2-d]-pyrazin-10a(10H)-yl}benzyl 3-methyl-1,2-oxazole-4-carboxylate (9.6 mg, 0.016 mmol) in a mixture MeOH/CH3CN (2 mL) and stirred at room temperature for 3 h. Brine (1 mL) was added and the resultant mixture was extracted with EtOAc (3×1 mL). The organic layers were combined, dried (MgSO4) and concentrated in vacuo to give a residue that was purified by flash chromatography (Biotage SP4 gradient 0-10% MeOH in EtOAc, 10CV and hold 10CV). The compound 10a-[4-(hydroxymethyl)phenyl]-1-[(3-methyl-1,2-oxazol-4-yl)carbonyl]-7-(pyridin-3-yl)-2,3,10,10a-tetrahydro-1H,5H-imidazo[1,2-a]pyrrolo[1,2-d]pyrazin-5-one (95) was isolated as a white solid (2.8 mg, yield 37%).

Provenance & Evidence