4-Pyridinecarboxaldehyde → trans-(4,5-dihydro-5-(pyridin-4-yl)oxazol-4-yl)(2H-pyrrol-1(5H)-yl)methanone

Participants

Reaction Steps

SLA 07158 was prepared in accordance with method D using pyridine-4-carbaldehyde (0.293 mL, 2.40 mmol), KOH (0.13 g, 2.32 mmol) in methanol (10 mL) and 2-isocyano-1-(2H-pyrrol-1(5H)-yl) ethanone SLA 07178 (0.301 g, 2.20 mmol). The solution was stirred 2 h with continued cooling. After work-up and column chromatography on florisil (EtOAc), trans-(4,5-dihydro-5-(pyridin-4-yl)oxazol-4-yl)(2H-pyrrol-1(5H)-yl)methanone SLA 07180 was obtained (0.284 g, 53% yield) as a yellow oil.

Provenance & Evidence