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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 40054Generated: October 26, 2026

2,3-Dihydrofuran → 1-Benzyl-N-(3,4-difluorobenzyl)-2-isopropyl-6-(tetrahydrofuran-2-yloxy)-1H-indole-3-carboxamide

https://huagongshe.com/reaction/40054

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,3-DihydrofuranHCID 70934—
ReactantBenzenesulfonic acid, 4-methyl-, compd. with pyridine (1:1)HCID 466102—
Reactant1-Benzyl-N-(3,4-difluorobenzyl)-6-hydroxy-2-isopropyl-1H-indole-3-carboxamideHCID 25160740—
SolventDichloromethaneHCID 6344—
Product1-Benzyl-N-(3,4-difluorobenzyl)-2-isopropyl-6-(tetrahydrofuran-2-yloxy)-1H-indole-3-carboxamideHCID 44233020—

Reaction Steps

To a solution of 1-benzyl-N-(3,4-difluorobenzyl)-6-hydroxy-2-isopropyl-1H-indole-3-carboxamide (Compound 8, 39 mg, 0.090 mmol) in CH2Cl2 (2.0 ml) was added 2,3-dihydrofuran (68 μl, 0.90 mmol) and catalytic amount of PPTS. The reaction was stirred at room temperature for 4 h, and was purified directly by PTLC on silica gel (30% EtOAc-hexanes) to yield the title compound as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08524917B2
Source datasetuspto-grants-2013_09
ORD IDord-bc86c5a241ad4b6390c3c17db41b135c
Source noteuspto-grants-2013_09