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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 556484Generated: October 30, 2026

Cyclobutanecarboxylic acid → HCID 57507257, compound

https://huagongshe.com/reaction/556484

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyclobutanecarboxylic acidHCID 19494—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantDiisopropylethylamineHCID 81531—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
ReactantHCID 57479079HCID 57479079—
SolventDichloromethaneHCID 6344—
ProductHCID 57507257HCID 5750725784.3%

Reaction Steps

The mixture of rac-3-[(2-Amino-ethyl)-isopropyl-amino]-6-chloro-3-(3-chloro-benzyl)-1,3-dihydro-indol-2-one (60 mg, 0.15 mmol), cyclobutanecarboxylic acid (18.4 mg, 0.18 mmol), EDCl (37 mg, 0.19 mmol), HOBt (30 mg, 0.19 mmol) and DIPEA (40 uL, 0.225) in DCM (2 mL) was stirred at root temperature for 2 hr. The mixture was purified by flash column chromatography to give 60 mg rac-Cyclobutanecarboxylic acid (2-{[6-chloro-3-(3-chloro-benzyl)-2-oxo-2,3-dihydro-1H-indol-3-yl]-isopropyl-amino}-ethyl)-amide. MS: [M+H]+=474

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08058269B2
Source datasetuspto-grants-2011_11
ORD IDord-83177adb27b243c9852e6fa3064b3937
Source noteuspto-grants-2011_11