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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 899042Generated: October 28, 2026

L-Proline → 2-(2-Aminoethyl)-1-methylpyrrolidine

https://huagongshe.com/reaction/899042

Reaction equation

Participants

RoleNameHCIDCharge
ReactantL-ProlineHCID 145742—
ReactantHCID 21961495HCID 21961495—
ReactantHCID 69015056HCID 69015056—
Product2-(2-Aminoethyl)-1-methylpyrrolidineHCID 98388—

Reaction Steps

In more detail, pyrazinopyrrolidine 1A is synthesized via a [3+2] cycloaddition chemistry. Conversion of L-proline 7 to cyano-1-aminopyrrolidine 8 without loss of stereochemistry, followed by reduction provides the chiral 2-aminoethyl-1-methyl pyrrolidine 2A in high yield. CX-3543 was found to have a formulated solubility of approximately 20 mg/mL.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07354916B2
Source datasetuspto-grants-2008_04
ORD IDord-89dfd50a83844116952346f0b1db9973
Source noteuspto-grants-2008_04