HCID 68803231, compound → HCID 68802680, compound

Participants

Reaction Steps

A solution of ethyl 5-{4-[5-(1-ethoxyvinyl)-3-pyridinyl]-7-ethyl-2-methylpyrrolo[1,2-b]pyridazin-3-yl}pentanoate (190 mg) in methanol (5 mL) and 1N hydrochloric acid (5 mL) was stirred at ambient temperature for 2 hours. The solution was diluted with brine and extracted with chloroform. The organic layer was separated, dried over magnesium sulfate, and evaporated in vacuo. The residue was purified by silica gel column chromatography eluting with a mixture of hexane and ethyl acetate (10:1-2:1) to give ethyl 5-[4-(5-acetyl-3-pyridinyl)-7-ethyl-2-methylpyrrolo[1,2-b]pyridazin-3-yl]pentanoate as an yellow oil (160 mg).

Provenance & Evidence