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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1820707Generated: October 25, 2026

Diisopropylethylamine → [4-(2-Fluoro-4-trifluoromethyl-phenyl)-piperazin-1-yl]-(2-isopropoxy-5-methanesulfonyl-phenyl)-methanone

https://huagongshe.com/reaction/1820707

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantO-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 2733207—
Reactant2-Isopropoxy-5-methylsulfonylbenzoic acidHCID 21100237—
Reactant1-(2-Fluoro-4-(trifluoromethyl)phenyl)piperazineHCID 46837495—
SolventDimethylformamideHCID 6228—
SolventFormic acid methanolHCID 18963719—
Product[4-(2-Fluoro-4-trifluoromethyl-phenyl)-piperazin-1-yl]-(2-isopropoxy-5-methanesulfonyl-phenyl)-methanoneHCID 11352274—

Reaction Steps

A mixture of 0.05 mmol 2-isopropoxy-5-methanesulfonyl-benzoic acid (Compound 1.2), 0.06 mmol 1-(2-fluoro-4-trifluoromethyl-phenyl)-piperazine, 0.055 mmol TBTU and 0.25 mmol DIPEA in 1 ml DMF was stirred at RT for 16 h. 0.5 ml MeOH/HCOOH 1/1 was added and the mixture was subjected to reversed phase preparative HPLC separation eluting with an acetonitrile/water gradient yielding the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07605163B2
Source datasetuspto-grants-2009_10
ORD IDord-c7285773228b4331a4918b6b8d4aba20
Source noteuspto-grants-2009_10