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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 872820Generated: October 30, 2026

1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → N-(2-(3-(3-chloro-4-cyano-2-methylphenyl)isoxazol-5-yl)ethyl)-3-(pyridin-3-yl)-1H-pyrazole-5-carboxamide

https://huagongshe.com/reaction/872820

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 15908—
ReactantDiisopropylethylamineHCID 81531—
Reactant1-Hydroxybenzotriazole hydrateHCID 2796029—
Reactant3-(pyridin-3-yl)-1H-pyrazole-5-carboxylic acidHCID 3159715—
Reactant4-(5-(2-Aminoethyl)isoxazol-3-yl)-2-chloro-3-methylbenzonitrile hydrochlorideHCID 67169735—
SolventDichloromethaneHCID 6344—
ProductN-(2-(3-(3-chloro-4-cyano-2-methylphenyl)isoxazol-5-yl)ethyl)-3-(pyridin-3-yl)-1H-pyrazole-5-carboxamideHCID 6717164016.3%

Reaction Steps

N-(2-(3-(3-chloro-4-cyano-2-methylphenyl)isoxazol-5-yl)ethyl)-3-(pyridin-3-yl)-1H-pyrazole-5-carboxamide was prepared from 4-(5-(2-aminoethyl)isoxazol-3-yl)-2-chloro-3-methylbenzonitrile hydrochloride (54.8 g, 0.184 mmol), 3-(pyridin-3-yl)-1H-pyrazole-5-carboxylic acid (34.8 mg, 0.184 mmol), HOBt hydrate (42.2 mg, 0.276 mmol), DIPEA (0.096 ml, 0.551 mmol) and EDCI (53 mg, 0.276 mmol) using DCM as solvent as described in previous Example. The crude product was purified by preparative HPLC to give the title compound 13 mg. 1H-NMR (400 MHz; CDCl3): δ 2.47 (s, 3H), 3.23 (t, 2H), 3.89 (m, 2H), 6.30 (s, 1H), 7.09 (bs, 1H), 7.22 (bs, 1H), 7.40 (m, 2H), 7.57 (d, 1H), 7.98 (d, 1H), 8.62 (bs, 1H), 8.95 (bs, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08975254B2
Source datasetuspto-grants-2015_03
ORD IDord-1751f49fc32a41bc97c0ec06152fe8c3
Source noteuspto-grants-2015_03