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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1710050Generated: October 31, 2026

Ethanol → 4-Amino-9-(4-methoxyphenyl)methyl-2-methyl-9H-pyrido[2,3-b]indole-3-carboxylic acid, ethyl ester

https://huagongshe.com/reaction/1710050

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantTolueneHCID 1140—
Reactant2,3-Dichloro-5,6-dicyano-1,4-benzoquinoneHCID 6775—
Reactant4-Amino-9-(4-methoxyphenyl)methyl-2-methyl-5,6,7,8-tetrahydro-9H-pyrido[2,3-b]indole-3-carboxylic acid, ethyl esterHCID 86744179—
SolventBenzeneHCID 241—
Product4-Amino-9-(4-methoxyphenyl)methyl-2-methyl-9H-pyrido[2,3-b]indole-3-carboxylic acid, ethyl esterHCID 8674418073%

Reaction Steps

The title compound was prepared in 73% yield from 4-amino-9-(4-methoxyphenyl)methyl-2-methyl-5,6,7,8-tetrahydro-9H-pyrido[2,3-b]indole-3-carboxylic acid, ethyl ester (D8) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone in a procedure similar to Description 7, using benzene as solvent instead of toluene. Product was obtained as white crystals from ethanol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04952584
Source datasetuspto-grants-1990_08
ORD IDord-0a4180e9915844eab76da7e547b9a5db
Source noteuspto-grants-1990_08