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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 380887Generated: November 3, 2026

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

https://huagongshe.com/reaction/380887

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-methylpropyn-2-ylamineHCID 96160—
Reactant(Z)-3-[(4-Acetyl-1H-pyrrol-2-yl)methylene]-1,3-dihydro-5-fluoro-4-iodo-2H-indol-2-oneHCID 18366029—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
CatalystHCID 178418397HCID 178418397—
SolventDimethylformamideHCID 6228—
SolventTriethylamineHCID 8471—
Product(Z)-3-[(4-Acetyl-1H-pyrrol-2-yl)methylene]-1,3-dihydro-5-fluoro-4-[3-(N-methylamino)-1-propynyl]-2H-indol-2-oneHCID 18366041—

Reaction Steps

Using Method C above, N-methylpropargylamine (43.6 mg, 0.66 mmol) was coupled with (Z)-3-[(4-acetyl-1H-pyrrol-2-yl)methylene]-1,3-dihydro-5-fluoro-4-iodo-2H-indol-2-one (100 mg, 0.25 mmol) (Example 90B) using (Ph3P)4Pd (30.1 mg) and CuI (6.0 mg) as catalyst in DMF (6 mL) and Et3N (6 mL) as solvent at 89° C. for 5 h to yield (Z)-3-[(4-Acetyl-1H-pyrrol-2-yl)methylene]-1,3-dihydro-5-fluoro-4-[3-(N-methylamino)-1-propynyl]-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-ffd29291bfff4c228edbdf6f90967f48
Source noteuspto-grants-2001_10