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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 545796Generated: October 28, 2026

4-bromo-3-(6-hydroxy-2,3-dihydro-1-benzofuran-5-yl)-1,3-dihydro-2H-indol-2-one → 4-Bromo-3-(6-hydroxy-2,3-dihydrobenzofuran-5-yl)-3-(hydroxymethyl)indolin-2-one

https://huagongshe.com/reaction/545796

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-bromo-3-(6-hydroxy-2,3-dihydro-1-benzofuran-5-yl)-1,3-dihydro-2H-indol-2-oneHCID 12004405—
Reactant3-(5-Fluoro-2-hydroxyphenyl)-1-pentylindolin-2-oneHCID 58872460—
Product4-Bromo-3-(6-hydroxy-2,3-dihydrobenzofuran-5-yl)-3-(hydroxymethyl)indolin-2-oneHCID 58872438—

Reaction Steps

Following the procedure as described in PREPARATION 14C, and making non-critical variations to replace 3-(5-fluoro-2-hydroxyphenyl)-1-pentyl-1,3-dihydro-2H-indol-2-one with 4-bromo-3-(6-hydroxy-2,3-dihydro-1-benzofuran-5-yl)-1,3-dihydro-2H-indol-2-one, the title compound was obtained (16%): Rf=0.21 (EtOAc/Hexanes, 7/3).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07935721B2
Source datasetuspto-grants-2011_05
ORD IDord-80ef39102e5c43eaad86d21cbe2b02a0
Source noteuspto-grants-2011_05