4-Methylmorpholine → 1-{4-[5-(2-Fluoro-biphenyl-4-yl)-[1,2,4]oxadiazol-3-yl]-benzyl}-4-(piperidine-1-ylcarbamoyl)-piperidine-4-carboxylic acid benzyl ester

HRID 2407508Notes

Reaction equation

HRID 2407508 reaction equation
ClC(OCC(C)C)=O.[CH2:9]([O:16][C:17]([C:19]1([C:50]([OH:52])=O)[CH2:24][CH2:23][N:22]([CH2:25][C:26]2[CH:31]=[CH:30][C:29]([C:32]3[N:36]=[C:35]([C:37]4[CH:42]=[CH:41][C:40]([C:43]5[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=5)=[C:39]([F:49])[CH:38]=4)[O:34][N:33]=3)=[CH:28][CH:27]=2)[CH2:21][CH2:20]1)=[O:18])[C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1.CN1CCOCC1.[NH2:60][N:61]1[CH2:66][CH2:65][CH2:64][CH2:63][CH2:62]1>O1CCCC1.O>[CH2:9]([O:16][C:17]([C:19]1([C:50](=[O:52])[NH:60][N:61]2[CH2:66][CH2:65][CH2:64][CH2:63][CH2:62]2)[CH2:20][CH2:21][N:22]([CH2:25][C:26]2[CH:27]=[CH:28][C:29]([C:32]3[N:36]=[C:35]([C:37]4[CH:42]=[CH:41][C:40]([C:43]5[CH:44]=[CH:45][CH:46]=[CH:47][CH:48]=5)=[C:39]([F:49])[CH:38]=4)[O:34][N:33]=3)=[CH:30][CH:31]=2)[CH2:23][CH2:24]1)=[O:18])[C:10]1[CH:11]=[CH:12][CH:13]=[CH:14][CH:15]=1

Participants

7

Reactant 4

HCID 79724-MethylmorpholineHCID 166581-AminopiperidineHCID 62365Isobutyl chloroformateHCID 595094311-{4-[5-(2-Fluorobiphenyl-4-yl)-[1,2,4]oxadiazol-3-yl]benzyl}piperidine-4,4-dicarboxylic acid benzyl ester

Product 1

HCID 595094951-{4-[5-(2-Fluoro-biphenyl-4-yl)-[1,2,4]oxadiazol-3-yl]-benzyl}-4-(piperidine-1-ylcarbamoyl)-piperidine-4-carboxylic acid benzyl ester

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
5 °C

Procedure

Isobutyl chloroformate (0.158 mL, 0.0012 mol) is added to a solution of 1-{4-[5-(2-fluoro-biphenyl-4-yl)-[1,2,4]oxadiazol-3-yl]-benzyl}-piperidine-4,4-dicarboxylic acid benzyl ester (0.6 g, 0.0010 mol) and N-methyl morpholine (0.156 mL, 0.0015 mol) in tetrahydrofuran (20 mL) at 5° C. The reaction mixture is stirred at 5° C. for 45 minutes. 1-Amino piperidine (0.162 mL, 0.0015 mol) is added to the reaction mixture and is stirred for 30 minutes at 5° C. and then at room temperature for 45 minutes. Demineralized water (10 mL) is added to the reaction mixture, Organic layer is separated and dried over sodium sulphate. Removal of solvent under reduced pressure gives a viscous liquid, which is purified by column chromatography (silica gel 230-400 mesh, hexane:ethyl acetate 70:30) to get 1-{4-[5-(2-fluoro-biphenyl-4-yl)-[1,2,4]oxadiazol-3-yl]-benzyl}-4-(piperidine-1-ylcarbamoyl)-piperidine-4-carboxylic acid benzyl ester.

Workup

  1. stirringis stirred for 30 minutes at 5° C.
  2. waitat room temperature for 45 minutes
  3. customis separated
  4. dry with materialdried over sodium sulphate
  5. customRemoval of solvent under reduced pressure
  6. customgives a viscous liquid, which
  7. customis purified by column chromatography (silica gel 230-400 mesh, hexane:ethyl acetate 70:30)

Sources & evidence

ORD record
ord-4964272338a64de49a43c0ee7b437a3a
Source dataset
uspto-grants-2014_08
Patent number
US08809539B2

Reaction notes

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