Methyl iodide → HCID 67582812, compound

HRID 1416478Notes

Reaction equation

HRID 1416478 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 67582094HCID 67582094, compound

Product 1

HCID 67582812HCID 67582812, compoundYield 91%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 2-[4-(benzyloxycarbonyl)piperazin-1-yl]-4-[(1R,4S)-(4-hydroxycyclopent-2-en-1-yl)oxy]quinazoline [cf. Example 35(3)] (6.31 g) and methyl iodide (4.00 g) in dimethylformamide (52 ml) is added 60% sodium hydride (in oil) (678 mg) with stirring under ice-cooling, and the mixture is stirred at room temperature for 4 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:methanol=500:1, v/v) to give 2-[4-(benzyloxycarbonyl)piperazin-1-yl]-4-[(1R,4S)-(4-methoxycyclopent-2-en-1-yl)oxy]quinazoline (5.92 g) as oil.

Workup

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

Sources & evidence

ORD record
ord-f0199983d09d4d48afc2157edbdb349e
Source dataset
uspto-grants-1999_06
Patent number
US05912247

Reaction notes

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