Diisopropylethylamine → 3-[5-Dibenzofuran-4-ylcarbonylamino-2-methylphenyl]-6-(4-methylpiperazin-1-yl)-3,4-dihydroquinazolin-4-one

HRID 2055097

Reaction equation

HRID 2055097 reaction equation
[NH2:1][C:2]1[CH:3]=[CH:4][C:5]([CH3:26])=[C:6]([N:8]2[C:17](=[O:18])[C:16]3[C:11](=[CH:12][CH:13]=[C:14]([N:19]4[CH2:24][CH2:23][N:22]([CH3:25])[CH2:21][CH2:20]4)[CH:15]=3)[N:10]=[CH:9]2)[CH:7]=1.[CH:27]1[C:35]2[C:34]3[CH:36]=[CH:37][CH:38]=[CH:39][C:33]=3[O:32][C:31]=2[C:30]([C:40](O)=[O:41])=[CH:29][CH:28]=1.C(N(C(C)C)CC)(C)C>CN(C=O)C.O>[CH:27]1[C:35]2[C:34]3[CH:36]=[CH:37][CH:38]=[CH:39][C:33]=3[O:32][C:31]=2[C:30]([C:40]([NH:1][C:2]2[CH:3]=[CH:4][C:5]([CH3:26])=[C:6]([N:8]3[C:17](=[O:18])[C:16]4[C:11](=[CH:12][CH:13]=[C:14]([N:19]5[CH2:24][CH2:23][N:22]([CH3:25])[CH2:21][CH2:20]5)[CH:15]=4)[N:10]=[CH:9]3)[CH:7]=2)=[O:41])=[CH:29][CH:28]=1

Participants

6

Reactant 3

HCID 81531DiisopropylethylamineHCID 3028728-Oxatricyclo(7.4.0.0,2,7)trideca-1(9),2(7),3,5,10,12-hexaene-6-carboxylic acidHCID 222381673-(5-Amino-2-methylphenyl)-6-(4-methylpiperazin-1-yl)-3,4-dihydroquinazolin-4-one

Product 1

HCID 222382223-[5-Dibenzofuran-4-ylcarbonylamino-2-methylphenyl]-6-(4-methylpiperazin-1-yl)-3,4-dihydroquinazolin-4-oneYield 89%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent2×

Procedure

A solution of 3-(5-amino-2-methylphenyl)-6-(4-methylpiperazin-1-yl)-3,4-dihydroquinazolin-4-one (0.165 g) in DMF (0.5 ml) was added to a stirred mixture of dibenzofuran-4-carboxylic acid (0.1 g), diisopropyethylamine (0.164 ml), 2-(7-azabenzotriazol-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate(V) (0.214 g) and DMF (0.5 ml) and the reaction mixture was stirred at ambient temperature for 16 hours. The mixture was diluted with water and the resultant solid was isolated, washed in turn with water and diethyl ether and dried under vacuum at 55° C. There was thus obtained the title compound (0.228 g); NMR Spectrum: (DMSOd6) 2.07 (s, 3H), 2.25 (s, 3H), 2.5-3.3 (m, 8H), 7.55 (m, 7H), 7.83 (m, 4H), 8.12 (s, 1H), 8.21 (d, 1H), 8.34 (d, 1H), 10.59 (s, 1H); Mass Spectrum: M+H+ 544.

Workup

  1. customthe resultant solid was isolated
  2. washwashed in turn with water and diethyl ether
  3. customdried under vacuum at 55° C

Sources & evidence

ORD record
ord-6eec2985990a4f51aa8ca636f840b7f2
Source dataset
uspto-grants-2008_02
Patent number
US07332483B2

Linked notes

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