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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2365403Generated: October 25, 2026

4-Phenethylpiperazin-2-one → tert-Butyl 7-(2-oxo-4-phenethylpiperazin-1-yl)-5-tosyl-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate

https://huagongshe.com/reaction/2365403

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Phenethylpiperazin-2-oneHCID 8547165—
Reactanttert-butyl 7-bromo-5-tosyl-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylateHCID 57950411—
Producttert-Butyl 7-(2-oxo-4-phenethylpiperazin-1-yl)-5-tosyl-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylateHCID 6798682460.1%

Reaction Steps

tert-Butyl 7-bromo-5-tosyl-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate (600 mg, 1.19 mmol) and 4-phenethylpiperazin-2-one (266 mg, 1.30 mmol) were reacted according to Example 2 (step f) to provide the title compound (450 mg, 60%) as a white powder: ESI MS m/z 629 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08697700B2
Source datasetuspto-grants-2014_04
ORD IDord-c4777f18f6204753905697fd28390cee
Source noteuspto-grants-2014_04