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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2363172Generated: October 31, 2026

Hydrochloric Acid → HCID 67239540, compound

https://huagongshe.com/reaction/2363172

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantCesium carbonateHCID 10796—
Reactant3-(Dimethylamino)benzeneboronic acidHCID 2762527—
Reactant2-Chloro-oxazole-4-carboxylic acid [1-(3,5-difluoro-4-methanesulfonylamino-phenyl)-ethyl]-amideHCID 67110887—
CatalystHCID 178418476HCID 178418476—
SolventEthanolHCID 702—
Solvent1,2-DimethoxyethaneHCID 8071—
ProductHCID 67239540HCID 6723954016.6%

Reaction Conditions

Temperature140 °C

Reaction Steps

In a 5 ml glass tube were placed 2-chloro-oxazole-4-carboxylic acid [1-(3,5-difluoro-4-methanesulfonylamino-phenyl)-ethyl]-amide (50 mg, 0.13 mmol), 3-dimethylaminophenyl boronic acid (60 mg, 0.30 mmol), Cs2CO3 (129 mg, 0.40 mmol), Pd(PPh3)2Cl2(7 mg, 0.01 mmol), dimethoxyethane (0.8 mL), ethanol (0.2 mL), and a magnetic stir bar. The mixture was stirred at 140° C. for 20 minutes under microwave irradiation, acidified with 3N HCl, and extracted twice with EtOAc. The organic layer was washed with brine, dried over anhydrous magnesium sulfate, filtered, and concentrated under reduced pressure. The crude residue was triturated with ether to give title compound (10 mg, 16%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08691855B2
Source datasetuspto-grants-2014_04
ORD IDord-59c23e7611524050ad441f876a4d4e19
Source noteuspto-grants-2014_04