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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1808874Generated: November 2, 2026

Trifluoroacetic acid → HCID 66695735, compound

https://huagongshe.com/reaction/1808874

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantTriethylamineHCID 8471—
Reactant3-(2-Methoxyphenyl)-5-methyl-1,2-oxazole-4-carboxylic acidHCID 6484100—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
Reactant4-Chloro-5-(piperazin-1-yl)-2-vinylanilineHCID 66692270—
SolventWaterHCID 962—
SolventDichloromethaneHCID 6344—
SolventN-methyl-2-pyrrolidoneHCID 13387—
ProductHCID 66695735HCID 6669573554%

Reaction Steps

To the mixture of 3-(2-methoxyphenyl)-5-methylisoxazole-4-carboxylic acid (0.182 g, 0.779 mmol), 4-chloro-5-(piperazin-1-yl)-2-vinylaniline, 2 TFA (0.279 g, 0.599 mmol) and HATU (0.296 g, 0.779 mmol) in a 100-mL round bottom flask was added NMP (5.5 mL) and triethylamine (0.145 g, 1.438 mmol). The resulted solution was stirred at room temperature for 13 hours. Water (50 mL) and DCM (50 mL) were added to the reaction mixture and the two phases were separated in a separatory funnel. The aqueous phase was extracted with DCM (2×40 mL). Solvent was evaporated by rotavap. The product was purified by preparative HPLC (acetonitrile/water−10 nM ammonium acetate) to give 0.146 g (54% yield) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08362004B2
Source datasetuspto-grants-2013_01
ORD IDord-10b10361865344b8ac840c5c10c79364
Source noteuspto-grants-2013_01