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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1749873Generated: November 1, 2026

Piperidine → HCID 178488166, compound

https://huagongshe.com/reaction/1749873

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperidineHCID 8082—
ReactantTert-butyl 4-[(6-hydroxy-3-oxo-2,3-dihydrobenzofuran-7-yl)methyl]piperazine-1-carboxylateHCID 60155786—
ReactantHCID 178488168HCID 178488168—
SolventMethanolHCID 887—
ProductHCID 178488166HCID 17848816669.9%

Reaction Conditions

Temperature60 °C

Reaction Steps

A solution of tert-butyl 4-[1-(6-hydroxy-3-oxo-2,3-dihydrobenzofuran-7-yl)methyl]piperazine-1-carboxylate (0.313 g, 0.898 mmol) in methanol (4 mL) was added with 5-methoxy-1H-indazole-3-carbaldehyde (0.158 g, 0.898 mmol), and piperidine (0.00764 g, 0.0898 mmol) at room temperature, and the mixture was stirred at 60° C. for 2 hours. The reaction mixture was concentrated, and the resulting residue was suspended in acetonitrile and thereby washed to obtain tert-butyl (Z)-4-({6-hydroxy-3-oxo-2-[(5-methoxy-1H-indazol-3-yl)methylene]-2,3-dihydrobenzofuran-7-yl}methyl)piperazine-1-carboxylate (0.318 g, 69%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09156827B2
Source datasetuspto-grants-2015_10
ORD IDord-11dfbfd466a0459faf7e52cf85ebbe0b
Source noteuspto-grants-2015_10