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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 380862Generated: October 26, 2026

N-methylpropyn-2-ylamine → (Z)-1,3-Dihydro-5-fluoro-4-[3-(N-methylamino)-1-propynyl]-3-[(1H-pyrrol-2-yl)methylene]-2H-indol-2-one

https://huagongshe.com/reaction/380862

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-methylpropyn-2-ylamineHCID 96160—
Reactant(Z)-1,3-dihydro-5-fluoro-4-iodo-3-[(1H-pyrrol-2-yl)methylene]-2H-indol-2-oneHCID 18363869—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
CatalystHCID 178418397HCID 178418397—
SolventDimethylformamideHCID 6228—
SolventTriethylamineHCID 8471—
Product(Z)-1,3-Dihydro-5-fluoro-4-[3-(N-methylamino)-1-propynyl]-3-[(1H-pyrrol-2-yl)methylene]-2H-indol-2-oneHCID 59959909—

Reaction Steps

Using Method C above, N-methylpropargylamine (48.4 mg, 0.7 mmol) was coupled with (Z)-1,3-dihydro-5-fluoro-4-iodo-3-[(1H-pyrrol-2-yl)methylene]-2H-indol-2-one (100 mg, 0.28 mmol) (Starting Material 5, supra) using (Ph3P)4Pd (32 mg) and CuI (5.3 mg) as catalyst in DMF (5 mL) and Et3N (5 mL) as solvent at 85° C. for 18 h to yield (Z)-1,3-Dihydro-5-fluoro-4-[3-(N-methylamino)-1-propynyl]-3-[(1H-pyrrol-2-yl)methylene]-2H-indol-2-one. (Yield 10 mg, 12%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06303793B1
Source datasetuspto-grants-2001_10
ORD IDord-2c7c72b06a954c47a6a2342a00d79dc8
Source noteuspto-grants-2001_10