Hydrazine hydrate (1:1) → HCID 178418701, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of tert-butyl 4-(4-phenyl-1,3-dioxobut-1-yl)-4-(2-(tert-butyldimethylsilyloxy)eth-1-yl)piperidine-1-carboxylate (343 mg, 0.68 mmol) from Step G in ethanol (7 mL) was added hydrazine hydrate (0.040 mL, 0.82 mmol). The reaction was heated at 85° C. for 3 h and was then concentrated in vacuo. The residue was purified by flash chromatography (30% ethyl acetate in hexanes) to afford the title product (243 mg).

Provenance & Evidence