Hydrochloric Acid → 4-({[2'-Fluoro-4'-(methylsulfonyl)-4-biphenylyl]oxy}methyl)piperidine hydrochloride

HRID 423499Notes

Reaction equation

HRID 423499 reaction equation
[F:1][C:2]1[CH:7]=[C:6]([S:8]([CH3:11])(=[O:10])=[O:9])[CH:5]=[CH:4][C:3]=1[C:12]1[CH:17]=[CH:16][C:15]([O:18][CH2:19][CH:20]2[CH2:25][CH2:24][N:23](C(OC(C)(C)C)=O)[CH2:22][CH2:21]2)=[CH:14][CH:13]=1.[ClH:33]>O1CCOCC1.CCOCC>[ClH:33].[F:1][C:2]1[CH:7]=[C:6]([S:8]([CH3:11])(=[O:10])=[O:9])[CH:5]=[CH:4][C:3]=1[C:12]1[CH:13]=[CH:14][C:15]([O:18][CH2:19][CH:20]2[CH2:25][CH2:24][NH:23][CH2:22][CH2:21]2)=[CH:16][CH:17]=1

Participants

5

Reactant 2

HCID 313Hydrochloric Acid2×HCID 249937121,1-Dimethylethyl 4-({[2'-fluoro-4'-(methylsulfonyl)-4-biphenylyl]oxy}methyl)-1-piperidinecarboxylate

Product 1

HCID 666734284-({[2'-Fluoro-4'-(methylsulfonyl)-4-biphenylyl]oxy}methyl)piperidine hydrochlorideYield 92%

Reagents, catalysts & solvents 2

HCID 3283Diethyl EtherSolvent2×HCID 312751,4-DioxaneSolvent2×

Procedure

1,1-Dimethylethyl 4-({[2′-fluoro-4′-(methylsulfonyl)-4-biphenylyl]oxy}methyl)-1-piperidinecarboxylate (Example 65, 0.484 g, 1.04 mmol) was dissolved in 1,4-dioxane (20 mL). To this solution was added ether (15 mL), followed by addition of 4.0M HCl in 1,4-dioxane (15 mL) and 2M HCl in ether (15 mL). The reaction mixture was stirred at ambient temperature overnight. The white solid was collected via filtration and washed with ether to yield 0.386 mg (92%) of 4-({[2′-fluoro-4′-(methylsulfonyl)-4-biphenylyl]oxy}methyl)piperidine hydrochloride as a white solid. 1H NMR (400 MHz, CD3OD): δ 7.85-7.50 (m, 3H), 7.56 (d, 2H, J=7.3 Hz), 7.06 (d, 2H, J=8.7 Hz), 3.98 (d, 2H, J=5.9 Hz), 3.50-3.40 (m, 2H), 3.17 (s, 3H), 3.10-3.00 (m, 2H), 2.25-2.05 (m, 3H), 1.70-1.55 (m, 2H); LRMS (ESI), m/z 364 (M+H).

Workup

  1. filtrationThe white solid was collected via filtration
  2. washwashed with ether

Sources & evidence

ORD record
ord-cdc3ac9e0f4c4d628baa6f263e6e6f5b
Source dataset
uspto-grants-2012_01
Patent number
US08101634B2

Reaction notes

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