Triethylamine → N-methyl-2-[1-[[5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]acetyl]-4-piperidinyl]-N-[(1R)-1-phenylpropyl]-4-thiazolecarboxamide

HRID 2043715Notes

Reaction equation

HRID 2043715 reaction equation
[CH3:1][N:2]([C@@H:16]([C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1)[CH2:17][CH3:18])[C:3]([C:5]1[N:6]=[C:7]([CH:10]2[CH2:15][CH2:14][NH:13][CH2:12][CH2:11]2)[S:8][CH:9]=1)=[O:4].C(N(CC)CC)C.[CH3:32][C:33]1[N:37]([CH2:38][C:39](O)=[O:40])[N:36]=[C:35]([C:42]([F:45])([F:44])[F:43])[CH:34]=1.Cl.CN(C)CCCN=C=NCC>ClCCl.CN(C)C1C=CN=CC=1>[CH3:1][N:2]([C@@H:16]([C:19]1[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=1)[CH2:17][CH3:18])[C:3]([C:5]1[N:6]=[C:7]([CH:10]2[CH2:15][CH2:14][N:13]([C:39](=[O:40])[CH2:38][N:37]3[C:33]([CH3:32])=[CH:34][C:35]([C:42]([F:45])([F:44])[F:43])=[N:36]3)[CH2:12][CH2:11]2)[S:8][CH:9]=1)=[O:4]

Participants

7

Reactant 4

HCID 8471TriethylamineHCID 5961182-(5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acidHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 67461678N-methyl-N-[(1R)-1-phenylpropyl]-2-(4-piperidinyl)-4-thiazolecarboxamide2×

Product 1

HCID 67463017N-methyl-2-[1-[[5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]acetyl]-4-piperidinyl]-N-[(1R)-1-phenylpropyl]-4-thiazolecarboxamide

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent

Procedure

N-Methyl-N-[(1R)-1-phenylpropyl]-2-(4-piperidinyl)-4-thiazolecarboxamide (i.e. the product of Example 1, Step E) (150 mg, 0.44 mmol) was dissolved in 3 mL of dry dichloromethane. To this solution was added triethylamine (30 μL, 0.22 mmol), 5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-acetic acid (83 mg, 0.4 mmol), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (84 mg, 0.44 mmol) and a catalytic amount of 4-(dimethylamino)pyridine (˜1 mg). The reaction mixture was shaken overnight at ambient temperature, concentrated under reduced pressure and passed through a silica gel column (2 g) using 1:1 hexanes/ethyl acetate as eluant. The dichloromethane/hexanes/ethyl acetate solution was concentrated under reduced pressure, and the residue was purified by preparative reverse phase High Pressure Liquid Chromatography (HPLC) using a solvent gradient going from 100% water to 100% acetonitrile to give 85 mg of the title product, a compound of the present invention as an oil. 1H NMR (CDCl3) δ 0.9-1.1 (br m, 3H), 1.7-1.9 (m, 2H), 1.9-2.2 (m, 4H), 2.31 (s, 3H), 2.7-3.0 (m, 4H), 3.2-3.4 (m, 2H), 3.9-4.6 (br m, 2H), 4.96 (br s, 2H), 5.6-6.0 (m, 1H), 6.3 (s, 1H) 7.20-7.45 (m, 5H), 7.8 (s, 1H).

Workup

  1. concentrationconcentrated under reduced pressure
  2. concentrationThe dichloromethane/hexanes/ethyl acetate solution was concentrated under reduced pressure
  3. customthe residue was purified by preparative reverse phase High Pressure Liquid Chromatography (HPLC)

Sources & evidence

ORD record
ord-4b7a055ad6414678a34d36fc967a2c8c
Source dataset
uspto-grants-2013_11
Patent number
US08586611B2

Reaction notes

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