Pyridine → t-Butyl 4-{[(4-(3-chloro-4-[(phenoxycarbonyl)amino]phenoxy}-2-pyridyl)amino]carbonyl}-1-piperidinecarboxylate

HRID 1010199Notes

Reaction equation

HRID 1010199 reaction equation
Cl[C:2]([O:4][C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1)=[O:3].[NH2:11][C:12]1[CH:40]=[CH:39][C:15]([O:16][C:17]2[CH:22]=[CH:21][N:20]=[C:19]([NH:23][C:24]([CH:26]3[CH2:31][CH2:30][N:29]([C:32]([O:34][C:35]([CH3:38])([CH3:37])[CH3:36])=[O:33])[CH2:28][CH2:27]3)=[O:25])[CH:18]=2)=[CH:14][C:13]=1[Cl:41].N1C=CC=CC=1.O1CCCC1>C(OCC)(=O)C.O>[Cl:41][C:13]1[CH:14]=[C:15]([CH:39]=[CH:40][C:12]=1[NH:11][C:2]([O:4][C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1)=[O:3])[O:16][C:17]1[CH:22]=[CH:21][N:20]=[C:19]([NH:23][C:24]([CH:26]2[CH2:31][CH2:30][N:29]([C:32]([O:34][C:35]([CH3:38])([CH3:36])[CH3:37])=[O:33])[CH2:28][CH2:27]2)=[O:25])[CH:18]=1

Participants

7

Reactant 4

HCID 1049PyridineHCID 8028TetrahydrofuranHCID 15891Phenyl chloroformateHCID 22936949t-Butyl4-({[4-(4-amino-3-chlorophenoxy)-2-pyridyl]amino}carbonyl)-1-piperidinecarboxylate

Product 1

HCID 58930861t-Butyl 4-{[(4-(3-chloro-4-[(phenoxycarbonyl)amino]phenoxy}-2-pyridyl)amino]carbonyl}-1-piperidinecarboxylate

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8857Ethyl AcetateSolvent

Procedure

After adding 0.21 ml of phenyl chloroformate to a solution of 660 mg of t-butyl 4-({[4-(4-amino-3-chlorophenoxy)-2-pyridyl]amino}carbonyl)-1-piperidine carboxylate, 0.14 ml of pyridine and 10 ml of tetrahydrofuran while stirring at room temperature, the mixture was further stirred for 13 hours. Water was added to the reaction solution, extraction was performed with ethyl acetate and the organic layer was washed with water, after which silica gel was added and the solvent was distilled off under reduced pressure. The silica gel was charged into a dry column packed with silica gel, and purification was performed by column chromatography (hexane:ethyl acetate=1:1, followed by ethyl acetate) to obtain 500 mg of a colorless oil.

Workup

  1. stirringthe mixture was further stirred for 13 hours
  2. washthe organic layer was washed with water
  3. additionafter which silica gel was added
  4. distillationthe solvent was distilled off under reduced pressure
  5. additionThe silica gel was charged into a dry column
  6. custompacked with silica gel, and purification

Sources & evidence

ORD record
ord-8fda5f92749142fbb72faa5d8d91e654
Source dataset
uspto-grants-2011_07
Patent number
US07973160B2

Reaction notes

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