1-Hydroxybenzotriazole → 3-[4-(2-chloro-phenoxy)-piperidin-1-yl]-3-oxo-N-(5-phenyl-thiazol-2-yl)-propionamide

HRID 1093705Notes

Reaction equation

HRID 1093705 reaction equation
[C:1]1([C:7]2[S:11][C:10]([NH:12][C:13](=[O:18])[CH2:14][C:15]([OH:17])=O)=[N:9][CH:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.CCN(C(C)C)C(C)C.C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.Cl.Cl.[Cl:51][C:52]1[CH:64]=[CH:63][CH:62]=[CH:61][C:53]=1[O:54][CH:55]1[CH2:60][CH2:59][NH:58][CH2:57][CH2:56]1>CN(C=O)C.O>[Cl:51][C:52]1[CH:64]=[CH:63][CH:62]=[CH:61][C:53]=1[O:54][CH:55]1[CH2:60][CH2:59][N:58]([C:15](=[O:17])[CH2:14][C:13]([NH:12][C:10]2[S:11][C:7]([C:1]3[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=3)=[CH:8][N:9]=2)=[O:18])[CH2:57][CH2:56]1

Participants

8

Reactant 5

HCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 167325894-(2-Chlorophenoxy)piperidine hydrochlorideHCID 57874410HCID 57874410, compound

Product 1

HCID 578744303-[4-(2-chloro-phenoxy)-piperidin-1-yl]-3-oxo-N-(5-phenyl-thiazol-2-yl)-propionamideYield 24.3%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a stirred solution of N-(5-phenyl-thiazol-2-yl)-malonamic acid (0.075 g, 0.00028 mole) in DMF (2 mL) was added DIPEA (0.11 g, 0.00085 mole), HOBt (0.038 g, 0.00028 mole) and EDCI.HCl (0.065 g, 0.00034 mole). After 2 minutes 4-(2-chloro-phenoxy)-piperidine hydrochloride (0.078 g, 0.00031 mole) was added and the resulting mixture was stirred overnight. The reaction mixture was then diluted with cold water and the product was extracted with ethyl acetate. The ethyl acetate layer was dried over sodium sulfate and concentrated under reduced pressure to afford 0.031 g (24%) of 3-[4-(2-chloro-phenoxy)-piperidin-1-yl]-3-oxo-N-(5-phenyl-thiazol-2-yl)-propionamide. LC-MS purity: 456.11 (M+1)+, 93.27%, 1H NMR (CDCl3): δ 11.6 (s, 1H), 7.9 (d, 2H), 7.44 (t, 3H), 7.3 (d, 1H), 7.22 (d, 1H), 7.14 (s, 1H), 6.92 (d, 2H), 4.7 (s, 1H), 4.1 (m, 1H), 3.8 (m, 1H), 3.7-3.5 (m, 4H), 2.0 (d, 4H).

Workup

  1. extractionthe product was extracted with ethyl acetate
  2. dry with materialThe ethyl acetate layer was dried over sodium sulfate
  3. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-3395e1d7a72c4186b7126f64403d7c48
Source dataset
uspto-grants-2012_03
Patent number
US08129376B2

Reaction notes

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