Diisopropylethylamine → 4-(3-(4-(trifluoromethyl)phenoxy)benzylidene)-N-(3,4-dimethylisoxazol-5-yl)piperidine-1-carboxamide

HRID 1666428Notes

Reaction equation

HRID 1666428 reaction equation
Cl.[F:2][C:3]([F:25])([F:24])[C:4]1[CH:23]=[CH:22][C:7]([O:8][C:9]2[CH:10]=[C:11]([CH:19]=[CH:20][CH:21]=2)[CH:12]=[C:13]2[CH2:18][CH2:17][NH:16][CH2:15][CH2:14]2)=[CH:6][CH:5]=1.[CH3:26][C:27]1[C:31]([CH3:32])=[C:30]([NH:33][C:34](=O)[O:35]C2C=CC=CC=2)[O:29][N:28]=1.NC1ON=C(C)C=1C.C(N(C(C)C)CC)(C)C>C(#N)C>[F:25][C:3]([F:2])([F:24])[C:4]1[CH:5]=[CH:6][C:7]([O:8][C:9]2[CH:10]=[C:11]([CH:19]=[CH:20][CH:21]=2)[CH:12]=[C:13]2[CH2:18][CH2:17][N:16]([C:34]([NH:33][C:30]3[O:29][N:28]=[C:27]([CH3:26])[C:31]=3[CH3:32])=[O:35])[CH2:15][CH2:14]2)=[CH:22][CH:23]=1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 883175-Amino-3,4-dimethylisoxazoleHCID 53485970Phenyl (3,4-dimethylisoxazol-5-yl)carbamateHCID 66875732HCID 66875732, compound

Product 1

HCID 249651424-(3-(4-(trifluoromethyl)phenoxy)benzylidene)-N-(3,4-dimethylisoxazol-5-yl)piperidine-1-carboxamide

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

4-(3-(4-(Trifluoromethyl)phenoxy)benzylidene)piperidine hydrochloride (200 mg, 0.541 mmol, from Example 53, Step 5), phenyl 3,4-dimethylisoxazol-5-ylcarbamate (126 mg, 0.541 mmol, prepared according to the procedure described in Synthesis, 1997, 1189-1194 from 5-amino-3,4-dimethylisoxazole) and diisopropylethylamine (0.20 mL, 1.15 mmol) were combined in acetonitrile (5 mL) and stirred at room temperature. After 16 h, the reaction was concentrated and the residue was purified by silica gel chromatography (0-30% EtOAc:CH2Cl2) to afford the title compound (218 mg) as a white solid. MS APCI M+ 472.3, 431.2, 375.3, 334.2; 1H NMR (400 MHz, CD3OD) δ ppm 1.83 (s, 3H) 2.18 (s, 3H) 2.44 (td, J=5.77, 1.07 Hz, 2H) 2.54 (td, J=5.81, 1.16 Hz, 2H) 3.49-3.54 (m, 2H) 3.59-3.63 (m, 2H) 6.44 (s, 1H) 6.90-6.98 (m, 2H) 7.05-7.14 (m, 3H) 7.35-7.44 (m, 1H) 7.59-7.67 (m, 2H).

Workup

  1. concentrationthe reaction was concentrated
  2. customthe residue was purified by silica gel chromatography (0-30% EtOAc:CH2Cl2)

Sources & evidence

ORD record
ord-4c6edbbcdebe44e6821b524fd9183d84
Source dataset
uspto-grants-2011_10
Patent number
US08044052B2

Reaction notes

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