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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 337834Generated: October 27, 2026

Trifluoroacetic acid → US9845313, Example 75

https://huagongshe.com/reaction/337834

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantTriethylsilaneHCID 12052—
ReactantN-(2,4-dimethoxybenzyl)-2,5-difluoro-4-{[(1R,2S)-2-phenylcyclohexyl]oxy}-N-(1,2,4-thiadiazol-5-yl)benzenesulfonamideHCID 89963413—
SolventDichloromethaneHCID 6344—
ProductUS9845313, Example 75HCID 8996353299.9%

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-{[(1R,2S)-2-phenylcyclohexyl]oxy}-N-(1,2,4-thiadiazol-5-yl)benzenesulfonamide (53.6 mg, 0.0891 mmol) prepared in Example 75a, triethylsilane (0.10 mL), trifluoroacetic acid (1.0 mL) and dichloromethane (1.0 mL), to yield the title compound (40.2 mg, 99%) as a colorless solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08889741B2
Source datasetuspto-grants-2014_11
ORD IDord-26a9f71fad6b4f09afd3e95f88660c0c
Source noteuspto-grants-2014_11