1-Ethynylcyclopentanol → HCID 9950201, compound

HRID 366666Notes

Reaction equation

HRID 366666 reaction equation
[C:1]([C:3]1([OH:8])[CH2:7][CH2:6][CH2:5][CH2:4]1)#[CH:2].Br[C:10]1[CH:18]=[CH:17][CH:16]=[C:15]2[C:11]=1/[C:12](=[CH:20]/[C:21]1[NH:22][CH:23]=[CH:24][C:25]=1[O:26][CH3:27])/[C:13](=[O:19])[NH:14]2>CN(C=O)C.CCN(CC)CC>[OH:8][C:3]1([C:1]#[C:2][C:10]2[CH:18]=[CH:17][CH:16]=[C:15]3[C:11]=2/[C:12](=[CH:20]/[C:21]2[NH:22][CH:23]=[CH:24][C:25]=2[O:26][CH3:27])/[C:13](=[O:19])[NH:14]3)[CH2:7][CH2:6][CH2:5][CH2:4]1

Participants

5

Reactant 2

HCID 870741-EthynylcyclopentanolHCID 18359254(Z)-4-bromo-1,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one2×

Product 1

HCID 9950201HCID 9950201, compound

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8471TriethylamineSolvent

Procedure

Using Method D above, 1-ethynyl-cyclopentanol (86.3 mg, 0.78 mmol) (Aldrich) was coupled with (Z)-4-bromo-1,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one (0.1 g, 0.31 mmol) (Starting Material 1 above) using DPPFPdCl2 (12.6 mg) and Cul (3 mg) as catalyst in DMF (3 mL) and Et3N (3 mL) as solvent at 85° C. for 2 days to yield (Z)-1,3-dihydro-4-[(1-hydroxycyclopentyl)ethynyl]-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one. (Yield 43 mg, 40%).

Sources & evidence

ORD record
ord-ead9a5f0c538489f8e2eba11d28e8341
Source dataset
uspto-grants-2000_10
Patent number
US06130239

Reaction notes

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