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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 540646Generated: October 26, 2026

N-Methylmaleimide → 4-{(E)-2-[5-(3-Fluorophenyl)pyridin-2-yl]vinyl}-2-methyl-3a,4,6,9,9a,9b-hexahydro-pyrrolo[3,4-a]indolizine-1,3-dione

https://huagongshe.com/reaction/540646

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-MethylmaleimideHCID 70261—
Reactant2-Pyridinecarboxylic acid, 1,2,3,6-tetrahydro-, hydrochloride (1:1)HCID 67783700—
Reactant(E)-3-[5-(3-Fluorophenyl)pyridin-2-yl]propenalHCID 86676729—
Product4-{(E)-2-[5-(3-Fluorophenyl)pyridin-2-yl]vinyl}-2-methyl-3a,4,6,9,9a,9b-hexahydro-pyrrolo[3,4-a]indolizine-1,3-dioneHCID 53492568—

Reaction Steps

The title compound is prepared analogously from 100 mg of (E)-3-[5-(3-fluorophenyl)pyridin-2-yl]propenal, 49 mg of N-methylmaleimide and 58 mg of 1,2,3,6-tetrahydropyridine-2-carboxylic acid hydrochloride. The crude product is purified by column chromatography (silica gel, MeOH:DCM=2:98). In this manner, 3 pure fractions are isolated as racemic mixtures.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08871798B2
Source datasetuspto-grants-2014_10
ORD IDord-833ccda15afd4036a5e11f5614a86241
Source noteuspto-grants-2014_10