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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 335852Generated: October 29, 2026

(S,E)-4'-fluoro-7'-(2-fluoropyridin-3-yl)-2'-(2-(3-methyloxetan-3-yl)vinyl)-5H-spiro[oxazole-4,9'-xanthen]-2-amine → (S)-4'-fluoro-7'-(2-fluoropyridin-3-yl)-2'-(2-(3-methyloxetan-3-yl)ethyl)-5H-spiro[oxazole-4,9'-xanthen]-2-amine

https://huagongshe.com/reaction/335852

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(S,E)-4'-fluoro-7'-(2-fluoropyridin-3-yl)-2'-(2-(3-methyloxetan-3-yl)vinyl)-5H-spiro[oxazole-4,9'-xanthen]-2-amineHCID 67383212—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
Product(S)-4'-fluoro-7'-(2-fluoropyridin-3-yl)-2'-(2-(3-methyloxetan-3-yl)ethyl)-5H-spiro[oxazole-4,9'-xanthen]-2-amineHCID 58466173—

Reaction Steps

To a reaction vessel charged with (S,E)-4′-fluoro-7′-(2-fluoropyridin-3-yl)-2′-(2-(3-methyloxetan-3-yl)vinyl)-5H-spiro[oxazole-4,9′-xanthen]-2-amine (38 mg, 0.082 mmol) and Pd/C (5%) (30 mg, 0.082 mmol) was added EtOH (1.5 mL). The reaction mixture was purged with hydrogen gas for 5 minutes and then maintained under 1 atm of hydrogen gas for 4 hours. The mixture was filtered through celite and the derived filtrate concentrated to provide (S)-4′-fluoro-7′-(2-fluoropyridin-3-yl)-2′-(2-(3-methyloxetan-3-yl)ethyl)-5H-spiro[oxazole-4,9′-xanthen]-2-amine as white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08883782B2
Source datasetuspto-grants-2014_11
ORD IDord-4470ff27803a433499610724f03b2a0a
Source noteuspto-grants-2014_11