Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 872842Generated: October 30, 2026

1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → (S)-N-(1-(3-(3-chloro-4-cyanophenyl)-1H-pyrazol-1-yl)propan-2-yl)-3-isopropyl-1,2,4-oxadiazole-5-carboxamide

https://huagongshe.com/reaction/872842

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 15908—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantDiisopropylethylamineHCID 81531—
Reactant3-Isopropyl-1,2,4-oxadiazole-5-carboxylic acidHCID 23201026—
Reactant(S)-4-(1-(2-aminopropyl)-1H-pyrazol-3-yl)-2-chlorobenzonitrileHCID 67170882—
SolventDimethylformamideHCID 6228—
Product(S)-N-(1-(3-(3-chloro-4-cyanophenyl)-1H-pyrazol-1-yl)propan-2-yl)-3-isopropyl-1,2,4-oxadiazole-5-carboxamideHCID 70657546—

Reaction Steps

The title compound was prepared using the method of Example 34(d) starting from (S)-4-(1-(2-aminopropyl)-1H-pyrazol-3-yl)-2-chlorobenzonitrile (0.33 g, 1.28 mmol), 3-isopropyl-1,2,4-oxadiazole-5-carboxylic acid (0.2 g, 1.28 mmol), HOBt (0.26 g, 1.92 mmol), DIPEA (0.7 mL, 3.84 mmol) and EDCI (0.37 g, 1.92 mmol) using DMF (10 mL) as solvent. Yield 0.197 g. 1H NMR (400 MHz; MeOD): δ 1.24 (d, 3H), 1.33 (d, 6H), 3.15 (m, 1H), 4.38 (m, 2H), 4.57 (m, 1H), 6.78 (d, 1H), 7.71 (d, 1H), 7.77 (m, 1H), 7.87 (dd, 1H), 8.02 (dd, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08975254B2
Source datasetuspto-grants-2015_03
ORD IDord-b1663bf204b94dd494332ad3e5625374
Source noteuspto-grants-2015_03