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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 14943Generated: October 26, 2026

2-(3,5-Difluorophenyl)ethan-1-amine → 1-(3-{2-[2-(3,5-Difluoro-phenyl)-ethylamino]-pyrimidin-4-yl}-benzyl)-piperazine-2-carboxylic acid

https://huagongshe.com/reaction/14943

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-(3,5-Difluorophenyl)ethan-1-amineHCID 3673665—
Reactant1-[3-(2-Chloro-pyrimidin-4-yl)-benzyl]-piperazine-2-carboxylic acidHCID 86603320—
Product1-(3-{2-[2-(3,5-Difluoro-phenyl)-ethylamino]-pyrimidin-4-yl}-benzyl)-piperazine-2-carboxylic acidHCID 58603591—

Reaction Steps

Intermediate 137 was coupled with 2-(3,5-difluoro-phenyl)-ethylamine following procedure F. The resulting product was deprotected following procedure G2. LC-MS showed the product had the expected M+H+ of 454. 1H NMR (Varian 300 MHz, CD3OD, shifts relative to the solvent peak at 3.3 ppm) δ 8.47 (s, 1H) 8.36 (d, 1H)) 8.33 (d, 1H) 7.87 (d, 1H) 7.71 (t, 1H) 7.65 (d, 1H) 7.00 (d, 2H) 6.77 (s, 1H) 4.63 (dd, 1H) 4.36 (s, 2H) 4.08 (t, 2H) 3.84 (dd, 2H) 3.65 (t, 2H) 3.47 (t, 2H) 3.09 (t, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07732444B2
Source datasetuspto-grants-2010_06
ORD IDord-d9bac519694943318bd424dd3dc84b70
Source noteuspto-grants-2010_06