Piperidine → HCID 58355427, compound

HRID 1259959Notes

Reaction equation

HRID 1259959 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][C@@H:12]([N:14]([C:19]([C:21]2[N:25]([CH2:26][CH2:27][CH2:28][CH2:29][O:30][CH3:31])[C:24]3[CH:32]=[CH:33][CH:34]=[C:35]([O:36][CH3:37])[C:23]=3[N:22]=2)=[O:20])[CH2:15][CH:16]([CH3:18])[CH3:17])[CH2:11][C@@H:10]([C:38]([OH:40])=O)[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[NH:41]1[CH2:46][CH2:45][CH2:44][CH2:43][CH2:42]1.C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.Cl>CN(C=O)C.C(N(CC)CC)C>[CH3:37][O:36][C:35]1[C:23]2[N:22]=[C:21]([C:19]([N:14]([CH2:15][CH:16]([CH3:18])[CH3:17])[C@H:12]3[CH2:11][C@@H:10]([C:38]([N:41]4[CH2:46][CH2:45][CH2:44][CH2:43][CH2:42]4)=[O:40])[CH2:9][N:8]([C:6]([O:5][C:1]([CH3:2])([CH3:3])[CH3:4])=[O:7])[CH2:13]3)=[O:20])[N:25]([CH2:26][CH2:27][CH2:28][CH2:29][O:30][CH3:31])[C:24]=2[CH:32]=[CH:33][CH:34]=1

Participants

7

Reactant 4

HCID 8082PiperidineHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 58355313HCID 58355313, compound

Product 1

HCID 58355427HCID 58355427, compound

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8471TriethylamineSolvent

Conditions

Temperature
50 °C

Procedure

(3R,5S)-1-(tert-Butoxycarbonyl)-5-{{{4-methoxy-1-(4-methoxybutyl)-1H-benzimidazol-2-yl}carbonyl}(2-methylpropyl)amino}piperidine-3-carboxylic acid (205 mg), piperidine (69 μl), HOBt (40 mg) and triethylamine (140 μl) were dissolved in DMF (10 ml), WSC.HCl (134 mg) was added, and the mixture was stirred at 50° C. for 1 hr. The reaction mixture was concentrated under reduced pressure, diluted with saturated aqueous sodium hydrogen carbonate, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure. The residue was subjected to silica gel column chromatography, and a fraction eluted with ethyl acetate-hexane (1:9)-ethyl acetate was concentrated under reduced pressure to give the object product (65 mg).

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. additiondiluted with saturated aqueous sodium hydrogen carbonate
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe extract was washed with saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customThe solvent was evaporated under reduced pressure
  7. washa fraction eluted with ethyl acetate-hexane (1:9)-ethyl acetate
  8. concentrationwas concentrated under reduced pressure

Sources & evidence

ORD record
ord-61814cdd50d1406695fdc68f85173204
Source dataset
uspto-grants-2013_06
Patent number
US08466282B2

Reaction notes

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