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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1878335Generated: October 26, 2026

Diisopropylethylamine → N-tert-Butyl-3-((4-(3-fluoro-4-(3-(5-(trifluoromethyl)pyridin-2-yl)ureido)benzoyl)piperazin-1-yl)methyl)benzamide

https://huagongshe.com/reaction/1878335

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantTriphosgeneHCID 94429—
Reactant2-Amino-5-(trifluoromethyl)pyridineHCID 735862—
Reactant3-((4-(4-amino-3-fluorobenzoyl)piperazin-1-yl)methyl)-N-tert-butylbenzamideHCID 66878528—
SolventDichloromethaneHCID 6344—
ProductN-tert-Butyl-3-((4-(3-fluoro-4-(3-(5-(trifluoromethyl)pyridin-2-yl)ureido)benzoyl)piperazin-1-yl)methyl)benzamideHCID 5791767952%

Reaction Steps

5-(Trifluoromethyl)pyridin-2-amine (0.485 mmol, 0.079 g) and N-ethyl-N-isopropylpropan-2-amine (0.727 mmol, 0.120 mL, 0.094 g) were added to a stirred solution of bis(trichloromethyl) carbonate (0.160 mmol, 0.047 g) in dichloromethane (10 mL). The reaction was stirred for 3 hours at room temperature. 3-((4-(4-Amino-3-fluorobenzoyl)piperazin-1-yl)methyl)-N-tert-butylbenzamide (0.242 mmol, 0.1 g) was added and the reaction stirred for 30 minutes. The reaction was heated in the microwave at 120° C. for 10 minutes. The reaction was concentrated under vacuum and purified by acidic reverse phase HPLC to afford the title compound (50 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08314091B2
Source datasetuspto-grants-2012_11
ORD IDord-38fdedd871d9409ab6eebf55c88418a9
Source noteuspto-grants-2012_11