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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1775956Generated: November 2, 2026

Formaldehyde → HCID 44242510, compound

https://huagongshe.com/reaction/1775956

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
ReactantTrifluoroacetic acidHCID 6422—
ReactantPiperidineHCID 8082—
Reactant1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 15908—
ReactantHydrazine, (4-chlorophenyl)-, hydrochloride (1:1)HCID 71600—
ReactantEthyl 4-bromobutyrateHCID 76300—
Reactant4,4-Diethoxy-N-methylbutan-1-amineHCID 13994547—
ReactantHCID 66911632HCID 66911632—
ReactantHCID 66911745HCID 66911745—
ReactantHCID 68992607HCID 68992607—
SolventAcetonitrileHCID 6342—
SolventTriethylamineHCID 8471—
SolventSodium HydroxideHCID 14798—
SolventHCID 66911654HCID 66911654—
ProductHCID 44242510HCID 44242510—

Reaction Steps

The title compound is prepared by following General Methods 1, 3, 4, 5 and 7 by using 4-chlorophenylhydrazine hydrochloride, ethyl 4-bromobutyrate, and triethylamine (General Method 1), ethyl 4-(1-(4-chlorophenyl)hydrazinyl)butanoate and 4,4-diethoxy-N-methylbutan-1-amine (General Method 3), ethyl 4-(5-chloro-3-(2-(methylamino)ethyl)-1H-indol-1-yl)butanoate, formaldehyde and TFA in acetonitrile (General Method 4), ethyl 4-(6-chloro-1,2,3,4-tetrahydro-2-methylpyrido[3,4-b]indol-9-yl)butanoate and NaOH (General Method 5), and 4-(6-chloro-1,2,3,4-tetrahydro-2-methylpyrido[3,4-b]indol-9-yl)butanoic acid, piperidine and EDCI (General Method 7).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09260429B2
Source datasetuspto-grants-2016_02
ORD IDord-f6d3c8eb4564489bbbd3946bd6a266fa
Source noteuspto-grants-2016_02