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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 710901Generated: October 30, 2026

Potassium Hydroxide → 8-ethyl-5-(2-(4-(trifluoromethyl)pyridin-3-yl)ethyl)-2,3,4,5-tetrahydro-2-methyl-1H-pyrido[4,3-b]indole

https://huagongshe.com/reaction/710901

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium HydroxideHCID 14797—
Reactant8-Ethyl-2-methyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indoleHCID 59455098—
ReactantPyridine, 3-ethenyl-4-(trifluoromethyl)-HCID 68735093—
SolventN-methyl-2-pyrrolidoneHCID 13387—
Product8-ethyl-5-(2-(4-(trifluoromethyl)pyridin-3-yl)ethyl)-2,3,4,5-tetrahydro-2-methyl-1H-pyrido[4,3-b]indoleHCID 57875877—

Reaction Steps

The title compound is prepared from a mixture of 8-ethyl-2,3,4,5-tetrahydro-2-methyl-1H-pyrido[4,3-b]indole, 4-(trifluoromethyl)-3-vinylpyridine and KOH (5-7 equiv) in NMP at a temperature ranging between 25 deg C. to 100 deg C. The product obtained is isolated by preparative HPLC.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09181240B2
Source datasetuspto-grants-2015_11
ORD IDord-90cc6696745040a2a9edd91ac09fcb66
Source noteuspto-grants-2015_11