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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1918744Generated: October 25, 2026

Diisopropylethylamine → N-(2-(5-chloro-1H-indol-3-yl)ethyl)-5-(2-fluorobenzyl)-1,2,4-oxadiazole-3-carboxamide

https://huagongshe.com/reaction/1918744

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant5-Chloro-1H-indole-3-ethylamine monohydrochlorideHCID 2827494—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
ReactantEthyl 5-(2-fluorobenzyl)-1,2,4-oxadiazole-3-carboxylateHCID 55185271—
SolventMethanolHCID 887—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
SolventSodium HydroxideHCID 14798—
ProductN-(2-(5-chloro-1H-indol-3-yl)ethyl)-5-(2-fluorobenzyl)-1,2,4-oxadiazole-3-carboxamideHCID 6683174926.1%

Reaction Steps

This compound was prepared according to method F with ethyl 5-(2-fluorobenzyl)-1,2,4-oxadiazole-3-carboxylate (0.108 g; 0.432 mmol) in methanol (6 mL) and sodium hydroxide in water (2M, 6 mL); and 2-(5-chloro-1H-indol-3-yl)ethanamine hydrochloride (0.100 g; 0.432 mmol), HATU (0.164 g; 0.432 mmol), N,N diisopropylethylamine (0.075 mL; 0.432 mmol), in DMF (6 mL). The crude mixture was purified by flash chromatography on silica (eluent 20 to 100% ethyl acetate in heptane) to yield 0.045 g (26%) of N-(2-(5-chloro-1H-indol-3-yl)ethyl)-5-(2-fluorobenzyl)-1,2,4-oxadiazole-3-carboxamide as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08618138B2
Source datasetuspto-grants-2013_12
ORD IDord-db317d2f6224420e92fb830c37d229db
Source noteuspto-grants-2013_12