Triphenylphosphine → N-(3-{1-[(3R)-3-(3,4-Dimethoxyphenoxy)-3-Phenylpropyl]-4-Piperidinyl}Phenyl)-2-Methylpropanamide

HRID 1832238Notes

Reaction equation

HRID 1832238 reaction equation
C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OCC)=O)=NC(OCC)=O.[OH:32][C@H:33]([C:54]1[CH:59]=[CH:58][CH:57]=[CH:56][CH:55]=1)[CH2:34][CH2:35][N:36]1[CH2:41][CH2:40][CH:39]([C:42]2[CH:43]=[C:44]([NH:48][C:49](=[O:53])[CH:50]([CH3:52])[CH3:51])[CH:45]=[CH:46][CH:47]=2)[CH2:38][CH2:37]1.[CH3:60][O:61][C:62]1[CH:63]=[C:64](O)[CH:65]=[CH:66][C:67]=1[O:68][CH3:69]>C1COCC1>[CH3:60][O:61][C:62]1[CH:63]=[C:64]([CH:65]=[CH:66][C:67]=1[O:68][CH3:69])[O:32][C@@H:33]([C:54]1[CH:55]=[CH:56][CH:57]=[CH:58][CH:59]=1)[CH2:34][CH2:35][N:36]1[CH2:41][CH2:40][CH:39]([C:42]2[CH:43]=[C:44]([NH:48][C:49](=[O:53])[CH:50]([CH3:52])[CH3:51])[CH:45]=[CH:46][CH:47]=2)[CH2:38][CH2:37]1

Participants

6

Reactant 4

HCID 11776TriphenylphosphineHCID 162513,4-DimethoxyphenolHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 60078700N-(3-{1-[(3S)-3-Hydroxy-3-Phenylpropyl]-4-Piperidinyl}Phenyl)-2-Methylpropanamide

Product 1

HCID 10279479N-(3-{1-[(3R)-3-(3,4-Dimethoxyphenoxy)-3-Phenylpropyl]-4-Piperidinyl}Phenyl)-2-MethylpropanamideYield 34.1%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

Into a 25-mL RB-flask was added triphenylphosphine (9.80 mg, 0.0375 mmol), diethyl azodicarboxylate (5.22 mg, 0.0300 mmol), N-(3-{1-[(3S)-3-hydroxy-3-phenylpropyl]-4-piperidinyl}phenyl)-2-methylpropanamide (9.53 mg, 0.0250 mmol), 3,4-dimethoxyphenol (7.70 mg, 0.0500 mmol) and THF (1.00 mL) at room temperature. The reaction mixture was stirred at room temperature overnight (16 h). The solvent was removed under reduced pressure and the residue was purified by preparative TLC plates [2.5% of NH3 (2.0 M in methanol) in CHCl3] to afford the desired product (4.40 mg, 34.1% yield) as a thick oil: 1H NMR (400 MHz, CDCl3) δ 7.46 (s, 1H), 7.40–7.30 (m, 4H), 7.25 (m, 3H), 6.97 (d, 1H, J=7.8 Hz), 6.64 (d, 1H, J=9.1 Hz), 6.51 (d, 1H, J=2.6 Hz), 6.29 (d, 1H, J=2.6, 9.1 Hz), 5.20 (apparent dd, 1H, J=4.4, 8.5 Hz), 3.80 (s, 3H), 3.77 (s, 3H), 3.23 (m, 2H), 2.77 (m, 2H), 2.5 (m, 2H), 2.3–2.1 (m, 6H), 1.80 (m, 2H), 1.25 (d, 6H, J=7.9 Hz); ESMS m/e: 517.4 (M+H)+.

Workup

  1. customThe solvent was removed under reduced pressure
  2. customthe residue was purified by preparative TLC plates [2.5% of NH3 (2.0 M in methanol) in CHCl3]

Sources & evidence

ORD record
ord-3eab6c8d79064544bffa86fded4d3cc3
Source dataset
uspto-grants-2006_06
Patent number
US07067534B1

Reaction notes

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