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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2190563Generated: October 25, 2026

Diisopropylethylamine → 4-(3-trifluoromethyl-phenyl)-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carboxylic acid (5-methyl-4-phenyl-thiazol-2-yl)-amide

https://huagongshe.com/reaction/2190563

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant6-chloro-N-(5-methyl-4-phenyl-1,3-thiazol-2-yl)pyridine-3-carboxamideHCID 3379941—
Reactant4-(3-Trifluoromethylphenyl)piperidine, HClHCID 22252849—
SolventN-methyl-2-pyrrolidoneHCID 13387—
Product4-(3-trifluoromethyl-phenyl)-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carboxylic acid (5-methyl-4-phenyl-thiazol-2-yl)-amideHCID 59317981—

Reaction Conditions

Temperature70 °C

Reaction Steps

To a mixture of 6-chloro-N-(5-methyl-4-phenyl-thiazol-2-yl)-nicotinamide (50 mg, 0.152 mmol) and anhydrous N-methylpyrrolidinone (10 mL) in a sealed tube was added 4-(3-trifluoromethyl-phenyl)-piperidine hydrochloride (80 mg, 0.30 mmol) followed by diisopropylethylamine (0.11 mL, 0.63 mmol). The mixture was heated in an oil bath at 70° C. overnight. After concentration, the crude was purified by RP-HPLC to give 4-(3-trifluoromethyl-phenyl)-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-5′-carboxylic acid (5-methyl-4-phenyl-thiazol-2-yl)-amide as an off-white powder. LCMS calcd for C28H25F3N4OS (m/e) 522, obsd 523 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08324385B2
Source datasetuspto-grants-2012_12
ORD IDord-078b12da911f4cd1ac7ec024b44444f8
Source noteuspto-grants-2012_12