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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 337730Generated: October 30, 2026

Trifluoroacetic acid → 2,5-Difluoro-4-{[(1S*,2R*)-2-(1-methyl-1H-pyrazol-5-yl)cyclopentyl]oxy}-N-(pyrimidin-4-yl)benzenesulfonamide

https://huagongshe.com/reaction/337730

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantTriethylsilaneHCID 12052—
ReactantN-(2,4-dimethoxybenzyl)-2,5-difluoro-4-{[(1S*,2R*)-2-(1-methyl-1H-pyrazol-5-yl)cyclopentyl]oxy}-N-(pyrimidin-4-yl)benzenesulfonamideHCID 89963423—
SolventDichloromethaneHCID 6344—
Product2,5-Difluoro-4-{[(1S*,2R*)-2-(1-methyl-1H-pyrazol-5-yl)cyclopentyl]oxy}-N-(pyrimidin-4-yl)benzenesulfonamideHCID 71711785100%

Reaction Steps

The reaction and aftertreatment were conducted in the same manner as in Example 1b by using the N-(2,4-dimethoxybenzyl)-2,5-difluoro-4-{[(1S*,2R*)-2-(1-methyl-1H-pyrazol-5-yl)cyclopentyl]oxy}-N-(pyrimidin-4-yl)benzenesulfonamide (0.54 g, 1.24 mmol) prepared in Example 14c, triethylsilane (1.98 mL, 12.4 mmol), trifluoroacetic acid (0.96 mL, 12.4 mmol) and dichloromethane (20 mL), to yield the title compound (0.54 g, 99%) as a colorless solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08889741B2
Source datasetuspto-grants-2014_11
ORD IDord-129e3a20385840548af4e6e5dd8c4018
Source noteuspto-grants-2014_11