Diisopropylethylamine → 1-(4-Amino-quinazolin-7-ylmethyl)-4-(6-chloro-1H-benzimidazole-2-carbonyl)-3-(S)-methoxymethyl-piperazin-2-one

HRID 1432979Notes

Reaction equation

HRID 1432979 reaction equation
C([O:8][C:9]([N:11]1[CH2:16][CH2:15][N:14]([CH2:17][C:18]2[CH:27]=[C:26]3[C:21]([C:22]([NH2:28])=[N:23][CH:24]=[N:25]3)=[CH:20][CH:19]=2)[C:13](=[O:29])[CH:12]1[CH2:30][O:31][CH3:32])=O)C1C=CC=CC=1.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F.C(N(C(C)C)CC)(C)C.[Cl:64][C:65]1[CH:66]=[CH:67][C:68]2[N:72]=[C:71](C(O)=O)[NH:70][C:69]=2[CH:76]=1>CN(C=O)C>[NH2:28][C:22]1[C:21]2[C:26](=[CH:27][C:18]([CH2:17][N:14]3[CH2:15][CH2:16][N:11]([C:9]([C:71]4[NH:70][C:69]5[CH:76]=[C:65]([Cl:64])[CH:66]=[CH:67][C:68]=5[N:72]=4)=[O:8])[C@@H:12]([CH2:30][O:31][CH3:32])[C:13]3=[O:29])=[CH:19][CH:20]=2)[N:25]=[CH:24][N:23]=1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 105121106-Chloro-1H-benzimidazole-2-carboxylic acidHCID 54306307HCID 54306307, compound

Product 1

HCID 545534321-(4-Amino-quinazolin-7-ylmethyl)-4-(6-chloro-1H-benzimidazole-2-carbonyl)-3-(S)-methoxymethyl-piperazin-2-oneYield 55%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 4-(4-amino-quinazoline-7-ylmethyl)-2-methoxymethyl-3-oxo-piperazine-1-carboxylic acid benzyl ester, EXAMPLE 75, (20 mg, 0.066 mmol) in 1.5 mL of DMF is added TBTU (923.4 mg, 0.073 mmol), diisopropylethylamine (0.013 ml, 0.073 mmol) and 6-chloro-1H-benzoimidazole-2-carboxylic acid (prepared from literature in Eur.J.med.Chem. 1993, 28, 71) (14.3 mg, 0.073 mmol). The resulting mixture is left to stir at room temperature overnight. The crude mixture is directly purified by reverse phase HPLC (10-70% ACN/H2O). The product (30.1 mg, 55%) is isolated as a white powder. C23H22ClN7O3 MS m/z: 480, 481. Anal. cald. for C23H22ClN7O3. 2C2HF3O2: C, 45.81; H, 3.42; N, 13.85. Found C, 45.19; H, 3.59; N, 13.76.

Workup

  1. waitThe resulting mixture is left
  2. customThe crude mixture is directly purified by reverse phase HPLC (10-70% ACN/H2O)

Sources & evidence

ORD record
ord-670a80a47ee047bba5509b898019c11f
Source dataset
uspto-grants-2009_11
Patent number
US07612075B2

Reaction notes

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