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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2365150Generated: October 30, 2026

Malic Acid → 5-(2-Diethylamino-ethyl)-2-[4-(2,3-difluoro-phenyl)-2-oxo-1,2-dihydro-indol-3-ylidenemethyl]-3-methyl-1,5,6,7-tetrahydro-pyrrolo[3,2-c]pyridin-4-one malate

https://huagongshe.com/reaction/2365150

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMalic AcidHCID 525—
Reactant5-(2-Diethylamino-ethyl)-2-[4-(2,3-difluoro-phenyl)-2-oxo-1,2-dihydro-indol-3-ylidenemethyl]-3-methyl-1,5,6,7-tetrahydro-pyrrolo[3,2-c]pyridin-4-oneHCID 66606685—
Product5-(2-Diethylamino-ethyl)-2-[4-(2,3-difluoro-phenyl)-2-oxo-1,2-dihydro-indol-3-ylidenemethyl]-3-methyl-1,5,6,7-tetrahydro-pyrrolo[3,2-c]pyridin-4-one malateHCID 66607715—

Reaction Steps

The title compound was prepared under the same conditions described in Example 132 with 5-(2-diethylamino-ethyl)-2-[4-(2,3-difluoro-phenyl)-2-oxo-1,2-dihydro-indol-3-ylidenemethyl]-3-methyl-1,5,6,7-tetrahydro-pyrrolo[3,2-c]pyridin-4-one prepared from Example 39 and 2-hydroxyl-succinic acid as starting materials to give 2-(5-fluoro-2-oxo-1,2-dihydro-5-(2-diethylamino-ethyl)-2-[4-(2,3-difluoro-phenyl)-2-oxo-1,2-dihydro-indol-3-ylidenemethyl]-3-methyl-1,5,6,7-tetrahydro-pyrrolo[3,2-c]pyridin-4-one malate (15 g, 94%) as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08697692B2
Source datasetuspto-grants-2014_04
ORD IDord-364406449ba9441388a26978eee11e20
Source noteuspto-grants-2014_04