Azacyclonol → 1-(2-{4-[Hydroxy(diphenyl)methyl]piperidin-1-yl}-2-oxoethyl)-3,3-diphenylpiperidin-2-one

HRID 1667156Notes

Reaction equation

HRID 1667156 reaction equation
[C:1]1([C:7]([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)([CH:9]2[CH2:14][CH2:13][NH:12][CH2:11][CH2:10]2)[OH:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[O:21]=[C:22]1[C:27]([C:34]2[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=2)([C:28]2[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=2)[CH2:26][CH2:25][CH2:24][N:23]1[CH2:40][C:41](O)=[O:42].Cl.C(N=C=NCCCN(C)C)C>ClCCl.CN(C)C1C=CN=CC=1>[OH:8][C:7]([C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1)([C:1]1[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1)[CH:9]1[CH2:14][CH2:13][N:12]([C:41](=[O:42])[CH2:40][N:23]2[CH2:24][CH2:25][CH2:26][C:27]([C:34]3[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=3)([C:28]3[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=3)[C:22]2=[O:21])[CH2:11][CH2:10]1

Participants

6

Reactant 3

HCID 15723AzacyclonolHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 673592802-(2-Oxo-3,3-diphenylpiperidin-1-yl)acetic acid

Product 1

HCID 573968161-(2-{4-[Hydroxy(diphenyl)methyl]piperidin-1-yl}-2-oxoethyl)-3,3-diphenylpiperidin-2-one

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent

Procedure

To a solution of diphenyl(piperidin-4-yl)methanol (0.13 g, 0.5 mmol) in dichloromethane (10 mL) under nitrogen was added 2-(2-oxo-3,3-diphenylpiperidin-1-yl)acetic acid (Example 68E, 0.16 g, 0.50 mmol) followed by N1-((ethylimino)methylene)-N3,N3-dimethylpropane-1,3-diamine hydrochloride (0.19 g, 1.00 mmol) and N,N-dimethylpyridin-4-amine (6 mg, 0.05 mmol). The reaction mixture was stirred overnight at room temperature. The reaction was concentrated and the residue was partitioned in ethyl acetate/water (8:2, 400 mL). The organic layer was washed with water followed by brine, dried over magnesium sulfate, filtered, and concentrated. Silica gel chromatography eluting with ethyl acetate/hexane (1:3) gave the title compound. 1H NMR (300 MHz, CDCl3) δ ppm 7.42-7.48 (m, 4H), 7.16-7.35 (m, 16H), 4.63-4.71 (m, 1H), 4.20 (d, J=1.5 Hz, 2H), 3.77-3.84 (m, 1H), 3.42-3.54 (m, 2H), 2.97-3.06 (m, 1H), 2.57-2.68 (m, 4H), 1.74-1.87 (m, 2H), 1.46-1.64 (m, 3H), 1.29-1.42 (m, 2H); MS (ESI+) m/z 559 (M+H)+.

Workup

  1. concentrationThe reaction was concentrated
  2. customthe residue was partitioned in ethyl acetate/water (8:2, 400 mL)
  3. washThe organic layer was washed with water
  4. dry with materialdried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated
  7. washSilica gel chromatography eluting with ethyl acetate/hexane (1:3)

Sources & evidence

ORD record
ord-d725e657902646f68784ed23ead51f7b
Source dataset
uspto-grants-2011_10
Patent number
US08044069B2

Reaction notes

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