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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1846111Generated: October 26, 2026

Pivaloyl chloride → 2,6-Difluoro-3-(tert-butylcarbonylamino-methyl)-benzoic acid

https://huagongshe.com/reaction/1846111

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPivaloyl chlorideHCID 62493—
ReactantBis(trimethylsilyl)trifluoroacetamideHCID 94358—
Reactant4,6-Dibromo-2,3-bis(methylsulfanyl)-1H-indoleHCID 14185853—
Reactant3-(Aminomethyl)-2,6-difluorobenzoic acidHCID 58483480—
SolventTetrahydrofuranHCID 8028—
Product2,6-Difluoro-3-(tert-butylcarbonylamino-methyl)-benzoic acidHCID 58483339—

Reaction Steps

Prepared analogously to 44b with 3-aminomethyl-2,6-difluorobenzoic acid, Piv-Cl, BSTFA and TEA in THF. Yield: 1.2 g (77%); MS: [m+H]+=272; HPLC: Rt=1.38 min (Method MC-6)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08951999B2
Source datasetuspto-grants-2015_02
ORD IDord-f7cbc469eec047fc85d558065fc6414c
Source noteuspto-grants-2015_02