1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → HCID 57874453, compound

HRID 1093796Notes

Reaction equation

HRID 1093796 reaction equation
CCN(C(C)C)C(C)C.[CH3:10][C:11]1[O:15][C:14]([C:16]2[CH:24]=[CH:23][C:19]([C:20]([OH:22])=O)=[CH:18][CH:17]=2)=[N:13][N:12]=1.C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.Cl.[NH2:47][CH2:48][C:49]([N:51]1[CH2:56][CH2:55][CH:54]([O:57][C:58]2[CH:63]=[CH:62][CH:61]=[CH:60][C:59]=2[Cl:64])[CH2:53][CH2:52]1)=[O:50]>CN(C=O)C.O>[Cl:64][C:59]1[CH:60]=[CH:61][CH:62]=[CH:63][C:58]=1[O:57][CH:54]1[CH2:53][CH2:52][N:51]([C:49](=[O:50])[CH2:48][NH:47][C:20](=[O:22])[C:19]2[CH:18]=[CH:17][C:16]([C:14]3[O:15][C:11]([CH3:10])=[N:12][N:13]=3)=[CH:24][CH:23]=2)[CH2:56][CH2:55]1

Participants

8

Reactant 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 177237644-(5-Methyl-1,3,4-oxadiazol-2-yl)benzoic acidHCID 665915282-Amino-1-[4-(2-chloro-phenoxy)-piperidin-1-yl]-ethanone hydrochloride

Product 1

HCID 57874453HCID 57874453, compoundYield 22.9%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

DIPEA (180 mg, 1.47 mmol) was added to a stirred solution of 1 4-(5-methyl-[1,3,4]oxadiazol-2-yl)-benzoic acid (100 mg, 0.48 mmol) in DMF (2 mL) followed by HOBt (79 mg, 0.58 mmol) and EDCI (113 mg, 0.587 mmol). After 2 minutes of stirring, 2-amino-1-[4-(2-chloro-phenoxy)-piperidin-1-yl]-ethanone hydrochloride (179 mg, 0.587 mmol) (prepared according to Step 1 and 5 of the General Scheme) was added and the resulting mixture was stirred at room temperature overnight. Cold water was then added and the product was extracted with EtOAc and the organic layer was washed with brine. The organic phase was dried over Na2SO4 and concentrated under reduced pressure The residue was purified by preparative HPLC to afford 50 mg (22.52% Yield) of N-{2-[4-(2-chloro-phenoxy)-piperidin-1-yl]-2-oxo-ethyl}-4-(5-methyl-[1,3,4]oxadiazol-2-yl)-benzamide. LC/MS [M+H]+: 93.97%. 1H NMR (300 MHz, DMSO-d6): δ 8.8 (s, 1H), 8.2-7.9 (m, 4H), 7.5-7.2 (m, 3H), 7.0 (bt, 1H), 4.8 (bs, 1H), 4.2 (bs, 2H), 3.7 (bs, 2H), 3.5 (m, 2H), 2.7-2.5 (m, 3H), 2.1-1.5 (m, 4H).

Workup

  1. additionwas added
  2. stirringthe resulting mixture was stirred at room temperature overnight
  3. extractionthe product was extracted with EtOAc
  4. washthe organic layer was washed with brine
  5. dry with materialThe organic phase was dried over Na2SO4
  6. concentrationconcentrated under reduced pressure The residue
  7. customwas purified by preparative HPLC

Sources & evidence

ORD record
ord-d7dbffb7eb0b467cb2bff4f790f1b065
Source dataset
uspto-grants-2012_03
Patent number
US08129376B2

Reaction notes

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