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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 336020Generated: October 30, 2026

4,4-Difluoropiperidine hydrochloride → (S)-2'-(4,4-difluoropiperidin-1-yl)-4'-fluoro-7'-(2-fluoropyridin-3-yl)-5H-spiro[thiazole-4,9'-xanthen]-2-amine

https://huagongshe.com/reaction/336020

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4,4-Difluoropiperidine hydrochlorideHCID 2758351—
Reactant2-Fluoropyridine-3-boronic acidHCID 2783270—
Reactant(S)-2-amino-7'-bromo-4'-fluoro-5H-spiro[thiazole-4,9'-xanthen]-2'-olHCID 67383112—
Product(S)-2'-(4,4-difluoropiperidin-1-yl)-4'-fluoro-7'-(2-fluoropyridin-3-yl)-5H-spiro[thiazole-4,9'-xanthen]-2-amineHCID 58466207—

Reaction Steps

The titled compound was synthesized by stpes analogous to those described in method AA20 above, but using (S)-2-amino-7′-bromo-4′-fluoro-5H-spiro[thiazole-4,9′-xanthen]-2′-ol (prepared as described in Method BB26 and Example 2 but using 7-bromo-4-fluoro-2-methoxy-9H-xanthen-9-one), 2-fluoropyridin-3-ylboronic acid and 4,4-difluoropiperidine hydrochloride. MS m/z=501.0.0 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08883782B2
Source datasetuspto-grants-2014_11
ORD IDord-737428b6fb1c48239fe75b06900d6372
Source noteuspto-grants-2014_11