Diisopropylethylamine → 1-(2-{4-[Bis(4-fluorophenyl)methylene]piperidin-1-yl}-2-oxoethyl)-3,3-diphenylpiperidin-2-one

HRID 1667214Notes

Reaction equation

HRID 1667214 reaction equation
[O:1]=[C:2]1[C:7]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[CH2:6][CH2:5][CH2:4][N:3]1[CH2:20][C:21](O)=[O:22].Cl.[F:25][C:26]1[CH:31]=[CH:30][C:29]([C:32]([C:39]2[CH:44]=[CH:43][C:42]([F:45])=[CH:41][CH:40]=2)=[C:33]2[CH2:38][CH2:37][NH:36][CH2:35][CH2:34]2)=[CH:28][CH:27]=1.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1.C(N(C(C)C)CC)(C)C>C(Cl)Cl>[F:45][C:42]1[CH:41]=[CH:40][C:39]([C:32]([C:29]2[CH:30]=[CH:31][C:26]([F:25])=[CH:27][CH:28]=2)=[C:33]2[CH2:38][CH2:37][N:36]([C:21](=[O:22])[CH2:20][N:3]3[CH2:4][CH2:5][CH2:6][C:7]([C:14]4[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=4)([C:8]4[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=4)[C:2]3=[O:1])[CH2:35][CH2:34]2)=[CH:44][CH:43]=1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 133631904-[Bis-(4-fluorophenyl)methylene]piperidine hydrochlorideHCID 673592802-(2-Oxo-3,3-diphenylpiperidin-1-yl)acetic acid

Product 1

HCID 673589281-(2-{4-[Bis(4-fluorophenyl)methylene]piperidin-1-yl}-2-oxoethyl)-3,3-diphenylpiperidin-2-one

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a solution of 2-(2-oxo-3,3-diphenylpiperidin-1-yl)acetic acid (Example 68E) (0.144 g, 0.47 mmol) and 4-(bis(4-fluorophenyl)methylene)piperidine hydrochloride (European Journal of Medicinal Chemistry; 22, 1987; 243-250) (0.15 g, 0.47 mmol) in methylene chloride (10 mL) was added O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (0.177 g, 0.47 mmol) and diisopropylethylamine (0.4 mL). The reaction mixture was stirred at ambient temperature overnight. The reaction mixture was then diluted with methylene chloride, and washed with 1 N HCl, water, 1 N NaOH, and water. The organic layer was dried over magnesium sulfate and concentrated in vacuo. The obtained residue was purified by silica gel flash chromatography, eluting with 5% methanol/dichloromethane. 1H NMR (300 MHz, CDCl3) δ ppm 7.17-7.33 (m, 10H), 6.96-7.05 (m, 8H), 4.24 (s, 2H), 3.66 (t, J=5.5 Hz, 2H), 3.51 (t, J=6.4 Hz, 2H), 3.42-3.48 (m, 2H), 2.62-2.67 (m, 2H), 2.29-2.42 (m, 4H), 1.75-1.89 (m, 2H); MS (ESI+) m/z 577 (M+H)+.

Workup

  1. washwashed with 1 N HCl, water, 1 N NaOH, and water
  2. dry with materialThe organic layer was dried over magnesium sulfate
  3. concentrationconcentrated in vacuo
  4. customThe obtained residue was purified by silica gel flash chromatography
  5. washeluting with 5% methanol/dichloromethane

Sources & evidence

ORD record
ord-0aa0cc06f18744ccbf743362b0031d6f
Source dataset
uspto-grants-2011_10
Patent number
US08044069B2

Reaction notes

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