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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1700362Generated: November 3, 2026

Diisopropylethylamine → Ethyl 1-({[2-(5-chloro-1H-indol-3-yl)ethyl]amino}carbonyl)cyclobutanecarboxylate

https://huagongshe.com/reaction/1700362

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantO-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 2733207—
Reactant5-Chloro-1H-indole-3-ethylamine monohydrochlorideHCID 2827494—
ReactantMonoethyl 1,1-cyclobutanedicarboxylateHCID 18317994—
SolventDichloromethaneHCID 6344—
ProductEthyl 1-({[2-(5-chloro-1H-indol-3-yl)ethyl]amino}carbonyl)cyclobutanecarboxylateHCID 11163887—

Reaction Steps

23.1 g of 5-chlorotryptamine hydrochloride, 17.3 g of monoethyl cyclobutanedicarboxylate, 36 ml of diisopropylethylamine and 33.7 g of O-(benzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium tetrafluoroborate are stirred for 20 hours at ambient temperature in 200 ml of dichloromethane. After washing with water, drying over sodium sulphate and filtering off the organic phase over Celite, evaporation under reduced pressure enables the expected product to be isolated.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06350757B1
Source datasetuspto-grants-2002_02
ORD IDord-ab50d7e3732f4d9f96748499779790a2
Source noteuspto-grants-2002_02