1-(2-Hydroxyethyl)piperazine → 1-(5-Tert-butylisoxazol-3-yl)-3-(3-(7-(3-(4-(2-hydroxyethyl)piperazin-1-yl)propoxy)-6-methoxyquinazolin-4-yloxy)phenyl)urea

HRID 631260Notes

Reaction equation

HRID 631260 reaction equation
[C:1]([C:5]1[O:9][N:8]=[C:7]([NH:10][C:11]([NH:13][C:14]2[CH:19]=[CH:18][CH:17]=[C:16]([O:20][C:21]3[C:30]4[C:25](=[CH:26][C:27]([O:33][CH2:34][CH2:35][CH2:36]Cl)=[C:28]([O:31][CH3:32])[CH:29]=4)[N:24]=[CH:23][N:22]=3)[CH:15]=2)=[O:12])[CH:6]=1)([CH3:4])([CH3:3])[CH3:2].[N:38]1([CH2:44][CH2:45][OH:46])[CH2:43][CH2:42][NH:41][CH2:40][CH2:39]1.C(N(C(C)C)CC)(C)C>CN(C=O)C.[I-].C([N+](CCCC)(CCCC)CCCC)CCC>[C:1]([C:5]1[O:9][N:8]=[C:7]([NH:10][C:11]([NH:13][C:14]2[CH:19]=[CH:18][CH:17]=[C:16]([O:20][C:21]3[C:30]4[C:25](=[CH:26][C:27]([O:33][CH2:34][CH2:35][CH2:36][N:41]5[CH2:42][CH2:43][N:38]([CH2:44][CH2:45][OH:46])[CH2:39][CH2:40]5)=[C:28]([O:31][CH3:32])[CH:29]=4)[N:24]=[CH:23][N:22]=3)[CH:15]=2)=[O:12])[CH:6]=1)([CH3:4])([CH3:3])[CH3:2]

Participants

6

Reactant 3

HCID 76771-(2-Hydroxyethyl)piperazineHCID 81531DiisopropylethylamineHCID 668760291-(5-Tert-butyl-isoxazol-3-yl)-3-{3-[7-(3-chloro-propoxy)-6-methoxy-quinazolin-4-yloxy]-phenyl}-urea

Product 1

HCID 582677221-(5-Tert-butylisoxazol-3-yl)-3-(3-(7-(3-(4-(2-hydroxyethyl)piperazin-1-yl)propoxy)-6-methoxyquinazolin-4-yloxy)phenyl)ureaYield 26%

Reagents, catalysts & solvents 2

HCID 67553Tetrabutylammonium IodideCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
60 °C

Procedure

To a solution of (1-(5-tert-butyl-isoxazol-3-yl)-3-{3-[7-(3-chloro-propoxy)-6-methoxy-quinazolin-4-yloxy]-phenyl}-urea from Example 27B (225 mg, 0.427 mmol) in DMF (3 mL) was added 2-piperazin-1-yl-ethanol (0.157 mL, 1.281 mmol) followed by diisopropylethylamine (0.223 mL, 1.281 mmol) and tetrabutylammonium iodide (157.72 mg, 0.427 mmol). The reaction mixture was heated at 60° C. for 2 days. Formation of the product was determined by LCMS. The crude reaction mixture was purified by preparative HPLC (using phenyl-hexyl reverse phase column eluted with gradient of solvent A=0.05% HOAc/H2O and solvent B=0.05% HOAc/CH3CN) to afford 1-(5-tert-butylisoxazol-3-yl)-3-(3-(7-(3-(4-(2-hydroxyethyl)piperazin-1-yl)propoxy)-6-methoxyquinazolin-4-yloxy)phenyl)urea (68 mg, 26%) as a white solid. 1H NMR (300 MHz, DMSO-d6) δ 9.45 (brs, 2H), 8.55 (s, 1H), 7.55 (d, 2H), 7.35 (d, 2H), 7.25 (d, 1H), 6.85 (d, 1H), 6.45 (s, 1H), 4.20 (m, 2H), 3.88 (s, 3H), 3.45 (m, 2H), 2.50-2.25 (m, 12H), 2.00 (m, 2H), 1.25 (s, 9H); LC-MS (ESI)m/z 620 (M+H)+.

Workup

  1. customThe crude reaction mixture
  2. customwas purified by preparative HPLC (
  3. washeluted with gradient of solvent A=0.05% HOAc/H2O and solvent B=0.05% HOAc/CH3CN)

Sources & evidence

ORD record
ord-568f0a80af7d40219373ac0786bff191
Source dataset
uspto-grants-2016_04
Patent number
US09320739B2

Reaction notes

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