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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 347692Generated: October 29, 2026

1-Methylpiperazine → 2-(3,5-bis-trifluoromethyl-phenyl)-N-methyl-N-[2-methyl-6'-(4-methyl-piperazin-1-yl)-[3,4']bipyridinyl-3'-yl]-isobutyramide

https://huagongshe.com/reaction/347692

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-MethylpiperazineHCID 53167—
Reactant2-(3,5-Bis-trifluoromethyl-phenyl)-N-(6'-chloro-2-methyl-[3,4]bipyridinyl-3'-yl)-N-methyl-isobutyramideHCID 21083635—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
Solventtert-Butyl methyl etherHCID 15413—
Product2-(3,5-bis-trifluoromethyl-phenyl)-N-methyl-N-[2-methyl-6'-(4-methyl-piperazin-1-yl)-[3,4']bipyridinyl-3'-yl]-isobutyramideHCID 1155606693%

Reaction Conditions

Temperature140 °C

Reaction Steps

A mixture of 0.16 g (0.30 mmol) 2-(3,5-bis-trifluoromethyl-phenyl)-N-(6′-chloro-2-methyl-[3,4′]bipyridinyl-3′-yl)-N-methyl-isobutyramide, 0.67 ml (6.0 mmol) 1-methylpiperazine and 2 mg (0.02 mmol) 4-(N,N-dimethylamino)pyridine was heated at 140° C. over night. After cooling to room temperature the mixture was diluted with tert-butyl methyl ether and washed with water. The aqueous layer was extracted with two portions of tert-butyl methyl ether. The combined organic layers were dried over sodium sulfate and concentrated in vacuo. Flash chromatography gave 0.16 g (93%) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07176205B2
Source datasetuspto-grants-2007_02
ORD IDord-006b540370564bdf8fa12042299d2820
Source noteuspto-grants-2007_02