Hydrochloric Acid → HCID 53630951, compound

HRID 244567Notes

Reaction equation

HRID 244567 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-79c9c3ed22774d53b761267cc1e950b8
Source dataset
uspto-grants-2014_02
Patent number
US08658654B2

Reaction notes

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