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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 14893Generated: October 26, 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/14893

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 numberUS07732444B2
Source datasetuspto-grants-2010_06
ORD IDord-aad9c1b036034706a823acc04a751e5e
Source noteuspto-grants-2010_06