Methyl iodide → HCID 67582994, compound

HRID 1416476Notes

Reaction equation

HRID 1416476 reaction equation
[CH2:1]([O:8][C:9]([N:11]1[CH2:16][CH2:15][N:14]([C:17]2[N:26]=[C:25]([O:27][C@H:28]3[CH2:32][C@@H:31]([OH:33])[CH:30]=[CH:29]3)[C:24]3[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=3)[N:18]=2)[CH2:13][CH2:12]1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:34]I.[H-].[Na+]>CN(C)C=O.C(OCC)(=O)C>[CH2:1]([O:8][C:9]([N:11]1[CH2:12][CH2:13][N:14]([C:17]2[N:26]=[C:25]([O:27][C@H:28]3[CH2:32][C@@H:31]([O:33][CH3:34])[CH:30]=[CH:29]3)[C:24]3[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=3)[N:18]=2)[CH2:15][CH2:16]1)=[O:10])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

6

Reactant 3

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 67582038HCID 67582038, compound

Product 1

HCID 67582994HCID 67582994, compoundYield 91.8%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 2-[4-(benzyloxycarbonyl)piperazin-1-yl]-4-[(1S,4R)-(4-hydroxycyclopent-2-en-1-yl)oxy]quinazoline [cf. Example 33(3)] (750 mg) and methyl iodide (445 mg) in dimethylformamide (6 ml) is added 60% sodium hydride (oil) (94 mg) with stirring at room temperature, and the mixture is stirred at room temperature for 3 hours. The reaction mixture is diluted with ethyl acetate, and washed with water 5 times. The ethyl acetate solution is dried over anhydrous magnesium sulfate and evaporated to dryness under reduced pressure. The resulting residue is purified by medium pressure liquid column chromatography [eluent, chloroform, (chloroform:methanol=200:1, v/v)] to give 2-[4-(benzyloxycarbonyl)piperazin-1-yl]-4-[(1S,4R)-(4-methoxycyclopent-2-en-1-yl)oxy]quinazoline (710 mg) as oil.

Workup

  1. stirringthe mixture is stirred at room temperature for 3 hours
  2. washwashed with water 5 times
  3. dry with materialThe ethyl acetate solution is dried over anhydrous magnesium sulfate
  4. customevaporated to dryness under reduced pressure
  5. customThe resulting residue is purified by medium pressure liquid column chromatography [eluent, chloroform

Sources & evidence

ORD record
ord-ea46b6e6195944749dc7ad6c5acf637c
Source dataset
uspto-grants-1999_06
Patent number
US05912247

Reaction notes

Loading…