methyl N-(prop-2-yn-1-yl)carbamate → (Z)-[3-[2,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2-oxo-1H-indol-4-yl]-2-propynyl]carbamic acid methyl ester

HRID 1069694Notes

Reaction equation

HRID 1069694 reaction equation
[CH3:1][O:2][C:3](=[O:8])[NH:4][CH2:5][C:6]#[CH:7].I[C:10]1[C:18]([N+]([O-])=O)=[CH:17][CH:16]=[C:15]2[C:11]=1/[C:12](=[CH:23]/[C:24]1[NH:25][CH:26]=[CH:27][C:28]=1[O:29][CH3:30])/[C:13](=[O:22])[NH:14]2>Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.CN(C=O)C.CCN(CC)CC>[CH3:1][O:2][C:3](=[O:8])[NH:4][CH2:5][C:6]#[C:7][C:10]1[CH:18]=[CH:17][CH:16]=[C:15]2[C:11]=1/[C:12](=[CH:23]/[C:24]1[NH:25][CH:26]=[CH:27][C:28]=1[O:29][CH3:30])/[C:13](=[O:22])[NH:14]2

Participants

6

Reactant 2

HCID 6917491methyl N-(prop-2-yn-1-yl)carbamateHCID 18366067(Z)-1,3-dihydro-4-iodo-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-5-nitro-2H-indol-2-one2×

Product 1

HCID 59959896(Z)-[3-[2,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2-oxo-1H-indol-4-yl]-2-propynyl]carbamic acid methyl ester

Reagents, catalysts & solvents 3

HCID 178418476HCID 178418476, compoundCatalystHCID 6228DimethylformamideSolventHCID 8471TriethylamineSolvent

Procedure

Using Method C above, 2-propynyl carbamic acid methyl ester (71.3 mg, 0.63 mmol) (see below) was coupled with (Z)-1,3-dihydro-4-iodo-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one (110 mg, 0.3 mmol) (Starting Material 2 supra) using (Ph3P)2PdCl2 (11 mg) and Cul (3 mg) as catalyst in DMF (3 mL) and Et3N (3 mL) as solvent at 80° C. for 6 h to give (Z)-[3-[2,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2-oxo-1H-indol-4-yl]-2-propynyl]carbamic acid methyl ester. (Yield 25 mg, 23%).

Sources & evidence

ORD record
ord-1c78ee85442e4efb8c40ba6033096e1a
Source dataset
uspto-grants-2001_06
Patent number
US06252086B1

Reaction notes

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