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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2365023Generated: October 26, 2026

4-bromo-2,3-dihydro-1H-indol-2-one → 2-(4-Bromo-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-5-(2-diethylamino-ethyl)-3-methyl-1,5,6,7-tetrahydro-pyrrolo[3,2-c]pyridin-4-one

https://huagongshe.com/reaction/2365023

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-bromo-2,3-dihydro-1H-indol-2-oneHCID 2763190—
Reactant5-(2-diethylaminoethyl)-3-methyl-4-oxo-4,5,6,7-tetrahydro-1H-pyrrolo[3,2-c]pyridine-2-carbaldehydeHCID 25023015—
Product2-(4-Bromo-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-5-(2-diethylamino-ethyl)-3-methyl-1,5,6,7-tetrahydro-pyrrolo[3,2-c]pyridin-4-oneHCID 6660814577.2%

Reaction Steps

The title compound was prepared under the same conditions as described in Example 1 with 5-(2-diethylamino-ethyl)-3-methyl-4-oxo-4,5,6,7-tetrahydro-1H-pyrrolo[3,2-c]pyridine-2-carbaldehyde and 4-bromo-1,3-dihydro-indol-2-one (prepared according to US20030225127) as starting materials to give 2-(4-bromo-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-5-(2-diethylamino-ethyl)-3-methyl-1,5,6,7-tetrahydro-pyrrolo[3,2-c]pyridin-4-one (59 mg, 77.2%) as a bright yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08697692B2
Source datasetuspto-grants-2014_04
ORD IDord-37203f3eca3741d9a85583db9f5c914a
Source noteuspto-grants-2014_04