Methanesulfonic Acid → (1S,2S)-1-(4-hydroxyphenyl)-2-(4-hydroxy-4-phenylpiperidin-1-yl)-1-propanol mesylate trihydrate

HRID 479579Notes

Reaction equation

HRID 479579 reaction equation
C([C@H]([C@@H](C([O-])=O)O)O)([O-])=[O:2].[OH:11][C:12]1[CH:17]=[CH:16][C:15]([C@H:18]([OH:34])[C@@H:19]([N:21]2[CH2:26][CH2:25][C:24]([OH:33])([C:27]3[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=3)[CH2:23][CH2:22]2)[CH3:20])=[CH:14][CH:13]=1.[CH3:35][S:36](O)(=[O:38])=[O:37]>O>[OH2:2].[OH2:11].[OH2:37].[S:36]([O:34][C@@H:18]([C:15]1[CH:16]=[CH:17][C:12]([OH:11])=[CH:13][CH:14]=1)[C@@H:19]([N:21]1[CH2:22][CH2:23][C:24]([OH:33])([C:27]2[CH:28]=[CH:29][CH:30]=[CH:31][CH:32]=2)[CH2:25][CH2:26]1)[CH3:20])(=[O:38])(=[O:37])[CH3:35]

Participants

5

Reactant 3

HCID 6395Methanesulfonic AcidHCID 219101TraxoprodilHCID 5460284D-Tartrate

Product 1

HCID 18396659(1S,2S)-1-(4-hydroxyphenyl)-2-(4-hydroxy-4-phenylpiperidin-1-yl)-1-propanol mesylate trihydrate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
62.5 °C

Procedure

The D-(−)-tartrate salt of (1S,2S)-1-(4-hydroxyphenyl)-2-(4-hydroxy-4-phenylpiperidin-1-yl)-1-propanol (5.0 g, 10.5 mmol), water (17.5 mL), and methanesulfonic acid (1.05 g, 11.0 mmol) were combined in a 50 mL, 3-neck round bottom flask under a nitrogen atmosphere. The slurry was heated to 60-65° C. to give a solution which was then filtered. The filtrate was slowly cooled over 1 hour to 15-20° C. to give a thick white suspension. The slurry was further cooled to 0-5° C. and then granulated at 0-5° C. for 1 hour. The product was filtered, the cake washed with 2.5 mL of cold water (0-5° C.) and then dried at 20-25° C. under nitrogen sweep. (1S,2S)-1-(4-hydroxyphenyl)-2-(4-hydroxy-4-phenylpiperidin-1-yl)-1-propanol mesylate trihydrate (4.53 g) was isolated in 90.4% overall yield as a white crystalline solid. The physical and chemical properties of the isolated trihydrate were identical to an authentic sample. 1H NMR (d6-DMSO) δ9.58 (s, 1H), 8.91 (S, 1H), 7.48 (m, 2H), 7.35 (m, 2,2H), 7.21 (m, 3H), 6.77 (d, J=8.5 Hz, 2H) 6.35 (s, 1H), 5.52 (s, 1H), 4.58 (d, J=8.1 Hz, 1H), 340 (m, 11H) 2.63 (m, 1H), 2.3 (s, 3H), 1.78 (m, 2H), 0.95 (d, J=6.6 Hz, 3H). 13C NMR (d6-DMSO) δ158.13, 148.61, 132.27, 129.27, 128.80, 127.51, 125.26, 115.89, 72.12, 68.89, 66.30, 47.40, 42.91, 35.71, 35.37. Anal. Calcd. for C20H25NO3.CH3SO3H.3H2O: C, 52.81; H, 7.39; N,2.93; S, 6.71. Found: C, 52.77; H, 7.50; N, 2.94; S, 6.96. αD=+54.5° (anhydrous basis).

Workup

  1. customto give a solution which
  2. filtrationwas then filtered
  3. temperatureThe filtrate was slowly cooled over 1 hour to 15-20° C.
  4. customto give a thick white suspension
  5. temperatureThe slurry was further cooled to 0-5° C.
  6. filtrationThe product was filtered
  7. washthe cake washed with 2.5 mL of cold water (0-5° C.)
  8. customdried at 20-25° C. under nitrogen sweep

Sources & evidence

ORD record
ord-38fd0dac1e9e45179c425ebd775c6a71
Source dataset
uspto-grants-2003_11
Patent number
US06645986B2

Reaction notes

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