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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1429410Generated: November 1, 2026

Trifluoroacetic acid → (S)-Ethyl 2-(N-(5-amino-1-phenylpentan-2-yl)-2-(trifluoromethoxy)phenylsulfonamido)acetate

https://huagongshe.com/reaction/1429410

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant(R,E)-Ethyl 2-(N-(4-cyano-1-phenylbut-3-en-2-yl)-2-(trifluoromethoxy)phenylsulfonamido)acetateHCID 71277869—
CatalystPlatinumHCID 23939—
CatalystAdams' catalystHCID 345198—
SolventMethanolHCID 887—
Product(S)-Ethyl 2-(N-(5-amino-1-phenylpentan-2-yl)-2-(trifluoromethoxy)phenylsulfonamido)acetateHCID 71277454—

Reaction Steps

To a solution of compound 31h (3.7 g, 7.7 mmol) in MeOH (200 mL) were added PtO2 (0.1 g), Pt/C (0.3 g) and TFA (1.9 g). The mixture was hydrogenated in a Parr shaker at 48 psi for 12 h. The mixture was filtered and concentrated. The product was directly used in the next reaction step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08940722B2
Source datasetuspto-grants-2015_01
ORD IDord-9ef68e43c63946d689288ba4f52207e5
Source noteuspto-grants-2015_01