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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 380815Generated: November 2, 2026

Lithium hydroxide, monohydrate → (Z)-5-[2,3-Dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2-oxo-1H-indol-4-yl]-4-pentynoic acid

https://huagongshe.com/reaction/380815

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium hydroxide, monohydrateHCID 168937—
ReactantHCID 59959883HCID 59959883—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
Product(Z)-5-[2,3-Dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2-oxo-1H-indol-4-yl]-4-pentynoic acidHCID 9797846—

Reaction Steps

Using Method F above, (Z)-5-[2,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2-oxo-1H-indol-4-yl]-4-pentynoic acid methyl ester (50 mg, 0.14 mmol) (from Example 8 above) was hydrolyzed with LiOH•H2O (118 mg, 2.8 mmol) in THF (3 mL) and water (3 mL) for 22 h. (Yield 40 mg, 85%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06303793B1
Source datasetuspto-grants-2001_10
ORD IDord-7208729b22104d6e91a626218622aa70
Source noteuspto-grants-2001_10