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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2386495Generated: October 31, 2026

2-(3,5-Difluorophenyl)ethan-1-amine → [2-(3,5-Difluoro-phenyl)-ethyl]-{4-[3-(2(S)-ethyl-piperazin-1-ylmethyl)-phenyl]-pyrimidin-2-yl}-amine

https://huagongshe.com/reaction/2386495

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-(3,5-Difluorophenyl)ethan-1-amineHCID 3673665—
Reactant4-[3-(2-Chloro-pyrimidin-4-yl)-benzyl]-3-ethyl-piperazine-1-carboxylic acid tert-butyl esterHCID 86603306—
Product[2-(3,5-Difluoro-phenyl)-ethyl]-{4-[3-(2(S)-ethyl-piperazin-1-ylmethyl)-phenyl]-pyrimidin-2-yl}-amineHCID 58603775—

Reaction Steps

Intermediate 112 was coupled with 2-(3,5-difluoro-phenyl)-ethylamine following procedure F. The enantiomers of this product were separated by chiral HPLC, with compound 195 coming from the first peak to elute. The resulting product was deprotected following procedure G2. LC-MS showed the product had the expected M+H+ of 439. 1H NMR (Varian 300 MHz, CD3OD, shifts relative to the solvent peak at 3.3 ppm) δ 8.74 (s, 1H), 8.38 (d, 2H), 7.97 (d, 1H), 7.71 (m, 2H), 7.00 (d, 2H), 6.74 (s, 1H), 4.58 (m, 6H), 4.07 (m, 4H), 3.25 (m, 3H), 3.07 (t, 2H), 1.39 (t, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08268822B2
Source datasetuspto-grants-2012_09
ORD IDord-949f5b22bcc04cf082ea552304f0864e
Source noteuspto-grants-2012_09