Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2182164Generated: October 31, 2026

Fumaric Acid → HCID 22482004, compound

https://huagongshe.com/reaction/2182164

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFumaric AcidHCID 444972—
ReactantHCID 9879509HCID 9879509—
SolventMethanolHCID 887—
SolventDiisopropyl EtherHCID 7914—
ProductHCID 22482004HCID 2248200479.6%

Reaction Steps

A solution of (3-chloro-benzyl)-(3,4,5,6-tetrahydro-2H-[1,2′]bipyrazinyl-6′-yl)-amine 4-M (1.14 g, 3.74 mmol) in a mixture of methanol (15 mL) and isopropyl Ether (90 mL) was treated with a methanolic solution of fumaric acid (434 mg in 7.5 mL Methanol, 3.74 mmol). The resulting mixture was stirred at room temperature for 1 h. Additional isopropyl Ether (120 mL) was then added to the reaction mixture and stirring continued for 10 minutes. The resulting solids were filtered from the solution and dried under high vacuum to obtain the title compound 4-N (1.25 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06894050B2
Source datasetuspto-grants-2005_05
ORD IDord-ccbe219409dc4bed8d300125ac1efb23
Source noteuspto-grants-2005_05