Hydrochloric Acid → HCID 58815950, compound

HRID 2245878Notes

Reaction equation

HRID 2245878 reaction equation
C([O:3][C:4]([CH:6]1[CH2:11][CH2:10][N:9]([C:12](=[O:38])[C:13]2[CH:18]=[CH:17][CH:16]=[C:15]([C@@H:19]([N:27]3[CH2:32][C@@H:31]([CH3:33])[N:30]([CH2:34][CH:35]=[CH2:36])[CH2:29][C@@H:28]3[CH3:37])[C:20]3[CH:25]=[CH:24][CH:23]=[C:22]([OH:26])[CH:21]=3)[CH:14]=2)[CH2:8][CH2:7]1)=[O:5])C.[OH-].[Na+].Cl.O>C1COCC1.CO>[CH2:34]([N:30]1[C@H:31]([CH3:33])[CH2:32][N:27]([C@@H:19]([C:20]2[CH:25]=[CH:24][CH:23]=[C:22]([OH:26])[CH:21]=2)[C:15]2[CH:14]=[C:13]([CH:18]=[CH:17][CH:16]=2)[C:12]([N:9]2[CH2:8][CH2:7][CH:6]([C:4]([OH:5])=[O:3])[CH2:11][CH2:10]2)=[O:38])[C@@H:28]([CH3:37])[CH2:29]1)[CH:35]=[CH2:36]

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 962WaterHCID 14798Sodium HydroxideHCID 12004031HCID 12004031, compound

Product 1

HCID 58815950HCID 58815950, compoundYield 92%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 1-{3-[(R)-((2S,5R)-4-allyl-2,5-dimethyl-piperazin-1-yl)-(3-hydroxy-phenyl)-methyl]-benzoyl}-piperidine-4-carboxylic acid ethyl ester (512 mg, Example 119) in THF (5 mL) was added 1 N NaOH solution (4 mL). The reaction was stirred at room temperature overnight. The reaction solution was neutralized by the addition of 1 N HCl solution (4 mL). The reaction solution was concentrated to dryness under vacuum to give crude product, which was subjected to reverse phase C-18 column chromatography conducted on CombiFlash™ Sq 16×(gradient: 100% H2O to 100% MeOH) to give 1-{3-[(R)-((2S,5R)-4-allyl-2,5-dimethyl-piperazin-1-yl)-(3-hydroxy-phenyl)-methyl]-benzoyl}-piperidine-4-carboxylic acid (445 mg; 92%). 1H NMR (300 MHz, CD3OD) δ 7.52-7.37 (m, 3H), 7.28 (m, 1H), 7.19 (dd, J=8.0, 8.0 Hz, 1H), 6.72 (m, 3H), 5.93 (m, 1H), 5.45 (m, 2H), 5.30 (s, 1H), 4.48 (m, 1H), 3.69 (m, 2H), 3.39 (m, 1H), 3.19-2.99 (m, 4H), 2.79 (m, 2H), 2.65 (m, 1H), 2.47 (m, 1H), 2.13 (m, 1H), 1.98 (m, 1H), 1.79 (m, 1H), 1.64 (m, 2H), 1.27 (d, J=6.0 Hz, 3H), 1.20 (d, J=6.5 Hz, 3H).

Workup

  1. concentrationThe reaction solution was concentrated to dryness under vacuum
  2. customto give crude product, which

Sources & evidence

ORD record
ord-493bdce4979346e08dec37ba04ee54e7
Source dataset
uspto-grants-2010_03
Patent number
US07683168B2

Reaction notes

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