Hydrochloric Acid → HCID 53630951, compound

HRID 2102467Notes

Reaction equation

HRID 2102467 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([NH:9][C:10]2[C:19]3[C:14](=[CH:15][C:16]([O:22][CH2:23][C:24]4[N:28]=[C:27]([CH:29]5[CH2:34][CH2:33][N:32](C(OC(C)(C)C)=O)[CH2:31][CH2:30]5)[O:26][N:25]=4)=[C:17]([O:20][CH3:21])[CH:18]=3)[N:13]=[CH:12][N:11]=2)[CH:5]=[CH:6][C:7]=1[Cl:8].Cl>CO>[Cl:1][C:2]1[CH:3]=[C:4]([NH:9][C:10]2[C:19]3[C:14](=[CH:15][C:16]([O:22][CH2:23][C:24]4[N:28]=[C:27]([CH:29]5[CH2:34][CH2:33][NH:32][CH2:31][CH2:30]5)[O:26][N:25]=4)=[C:17]([O:20][CH3:21])[CH:18]=3)[N:13]=[CH:12][N:11]=2)[CH:5]=[CH:6][C:7]=1[Cl:8]

Participants

4

Reactant 2

HCID 313Hydrochloric AcidHCID 57802886HCID 57802886, compound

Product 1

HCID 53630951HCID 53630951, compoundYield 78.2%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

1,1-Dimethylethyl 4-[3-({[4-[(3,4-dichlorophenyl)amino]-6-(methyloxy)quinazolin-7-yl]oxy}methyl)-1,2,4-oxadiazol-5-yl]piperidine-1-carboxylate (12.3 g, 20.4 mmol) was dissolved in MeOH (100 ml) and HCl (4M in dioxane; 65 ml) was added. The solution was stirred at room temperature for 10 min and concentrated to half the initial volume. Ethyl ether was added to the suspension obtained and the precipitate was collected by filtration, washed with ether and concentrated to dryness to give 8 g of N-(3,4-dichlorophenyl)-6-(methyloxy)-7-{[(5-piperidin-4-yl-1,2,4-oxadiazol-3-yl)methyl]oxy}quinazolin-4-amine (78% yield). 1H NMR (400 MHz; DMSO-d6): 1.61 (qd, 2H), 1.94 (m, 2H), 2.07-2.19 (br s, 1H), 2.57 (td, 2H), 2.95 (dt, 2H), 3.17 (m, 1H), 3.97 (s, 3H), 5.44 (s, 2H), 7.40 (s, 1H), 7.63 (d, 1H), 7.85 (s, 1H), 7.87 (dd, 1H), 8.23 (d, 1H), 8.54 (s, 1H), 9.64 (s, 1H); MS (EI) for C23H22Cl2N6O3: 501.07 (MH+)

Workup

  1. concentrationconcentrated to half the initial volume
  2. additionEthyl ether was added to the suspension
  3. customobtained
  4. filtrationthe precipitate was collected by filtration
  5. washwashed with ether
  6. concentrationconcentrated to dryness

Sources & evidence

ORD record
ord-1f8f4d1f601545479c92ac93580be73b
Source dataset
uspto-grants-2009_08
Patent number
US07576074B2

Reaction notes

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