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Diisopropylethylamine → Biphenyl-2-ylcarbamic Acid 1-(2-{[3-(4-(1,3-Dioxolan-2-yl)-phenylcarbamoyl)phenyl]methylcarbamoyl}ethyl)piperidin-4-yl Ester

HRID 1039848
Notes
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Reaction equation

HRID 1039848 reaction equation
[O:1]1[CH2:5][CH2:4][O:3][CH:2]1[C:6]1[CH:11]=[CH:10][C:9]([NH2:12])=[CH:8][CH:7]=1.C(N(CC)C(C)C)(C)C.Cl[C:23]([C:25]1[CH:26]=[C:27]([CH2:31][NH:32][C:33]([CH2:35][CH2:36][N:37]2[CH2:42][CH2:41][CH:40]([O:43][C:44](=[O:58])[NH:45][C:46]3[CH:51]=[CH:50][CH:49]=[CH:48][C:47]=3[C:52]3[CH:57]=[CH:56][CH:55]=[CH:54][CH:53]=3)[CH2:39][CH2:38]2)=[O:34])[CH:28]=[CH:29][CH:30]=1)=[O:24].C(=O)(O)[O-].[Na+]>C(Cl)Cl>[O:1]1[CH2:5][CH2:4][O:3][CH:2]1[C:6]1[CH:11]=[CH:10][C:9]([NH:12][C:23]([C:25]2[CH:26]=[C:27]([CH2:31][NH:32][C:33]([CH2:35][CH2:36][N:37]3[CH2:38][CH2:39][CH:40]([O:43][C:44](=[O:58])[NH:45][C:46]4[CH:51]=[CH:50][CH:49]=[CH:48][C:47]=4[C:52]4[CH:57]=[CH:56][CH:55]=[CH:54][CH:53]=4)[CH2:41][CH2:42]3)=[O:34])[CH:28]=[CH:29][CH:30]=2)=[O:24])=[CH:8][CH:7]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 516892Sodium BicarbonateHCID 111266244-(1,3-Dioxolan-2-yl)anilineHCID 86646969Biphenyl-2-ylcarbamic acid 1-{2-[(3-chlorocarbonylphenyl)methylcarbamoyl]ethyl}piperidin-4-yl ester

Product 1

HCID 66771841Biphenyl-2-ylcarbamic Acid 1-(2-{[3-(4-(1,3-Dioxolan-2-yl)-phenylcarbamoyl)phenyl]methylcarbamoyl}ethyl)piperidin-4-yl Ester
Yield 100%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a stirred solution of 4-(1,3-dioxolan-2-yl)phenylamine (0.0826 g, 0.500 mmol) and N,N-diisopropylethylamine (348 μL, 2.00 mmol) in DCM (2.0 mL) at room temperature was added a solution of biphenyl-2-ylcarbamic acid 1-{2-[(3-chlorocarbonylphenyl)methylcarbamoyl]ethyl}piperidin-4-yl ester (0.260 g, 0.500 mmol) in DCM (1.0 mL). The resulting mixture was stirred at room temperature for 1 h. LC-MS (Method 10-90) showed product was present (Rt 3.41 min; m/z 649.4 [M+H]+. Saturated aqueous sodium bicarbonate solution was added and the layers were separated. The organic layer was dried over sodium sulfate, filtered and concentrated under reduced pressure. The residue was purified by silica gel flash chromatography (0-5% MeOH in DCM) to give the title compound (345 mg containing some solvent residue, ca. 100% yield) as a brown oil.

Workup

  1. customthe layers were separated
  2. dry with materialThe organic layer was dried over sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by silica gel flash chromatography (0-5% MeOH in DCM)

Sources & evidence

ORD record
ord-55e8619b3372481296ec7cdc6652c4e2
Source dataset
uspto-grants-2013_10
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08551978B2

Reaction notes

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