(2S)-But-3-yn-2-ol → HCID 178433234, compound

HRID 1069728Notes

Reaction equation

HRID 1069728 reaction equation
[CH3:1][C@H:2]([OH:5])[C:3]#[CH:4].[F:6][C:7]1[C:8](I)=[C:9]2[C:13](=[CH:14][CH:15]=1)[NH:12][C:11](=[O:16])/[C:10]/2=[CH:17]\[C:18]1[NH:22][CH:21]=[N:20][C:19]=1[CH3:23]>CN(C=O)C.CCN(CC)CC.CCOC(C)=O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[F:6][C:7]1[C:8]([C:4]#[C:3][C@@H:2]([OH:5])[CH3:1])=[C:9]2[C:13](=[CH:14][CH:15]=1)[NH:12][C:11](=[O:16])/[C:10]/2=[CH:17]\[C:18]1[NH:22][CH:21]=[N:20][C:19]=1[CH3:23]

Participants

7

Reactant 2

HCID 6995470(2S)-But-3-yn-2-olHCID 178433242HCID 178433242, compound2×

Product 1

HCID 178433234HCID 178433234, compound

Reagents, catalysts & solvents 4

HCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolventHCID 8471TriethylamineSolventHCID 8857Ethyl AcetateSolvent

Procedure

Using Method C above, (S)-but-3-yn-2-ol (38 mg, 0.54 mmol) (Aldrich) was coupled with (Z)-1,3-dihydro-5-fluoro-4-iodo-3-[(4-methyl-1H-imidazol-5-yl)methylene]-2H-indol-2-one (50 mg, 0.14 mmol) (Starting Material 3 supra) using (Ph3P)4Pd (16 mg, 0.01 mmol) and Cul (2 mg) in a mixture of DMF (3 mL) and Et3N (3 mL) as solvent at 80° C. for 5 hrs. Upon completion, the reaction mixture was diluted with EtOAc and extracted with H2O. The organic layer was dried over Na2SO4 and concentrated. (S)-(Z)-1,3-Dihydro-5-fluoro-4-(3-hydroxy-1-butynyl)-3-[(4-methyl-1H-imidazol-5-yl)methylene]-2H-indol-2-one was obtained after silica gel column with a 0-10% MeOH in CH2Cl2 gradient and trituration with Et2O. (Yield 21 mg, 50%).

Workup

  1. extractionextracted with H2O
  2. dry with materialThe organic layer was dried over Na2SO4
  3. concentrationconcentrated

Sources & evidence

ORD record
ord-1bc728c07d804af29065afb25049dc0d
Source dataset
uspto-grants-2001_06
Patent number
US06252086B1

Reaction notes

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