Acetic Acid → N-[1-cyclopropylmethyl-4-(4-iodo-phenyl)-piperidin-4-ylmethyl]-2-(3,5-difluoro-phenyl)-acetamide

HRID 2180170Notes

Reaction equation

HRID 2180170 reaction equation
[F:1][C:2]1[CH:3]=[C:4]([CH2:9][C:10]([NH:12][CH2:13][C:14]2([C:20]3[CH:25]=[CH:24][C:23]([I:26])=[CH:22][CH:21]=3)[CH2:19][CH2:18][NH:17][CH2:16][CH2:15]2)=[O:11])[CH:5]=[C:6]([F:8])[CH:7]=1.[CH:27]1([CH:30]=O)[CH2:29][CH2:28]1.CC(O)=O.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+]>C(Cl)CCl.CCOC(C)=O>[CH:27]1([CH2:30][N:17]2[CH2:18][CH2:19][C:14]([CH2:13][NH:12][C:10](=[O:11])[CH2:9][C:4]3[CH:3]=[C:2]([F:1])[CH:7]=[C:6]([F:8])[CH:5]=3)([C:20]3[CH:21]=[CH:22][C:23]([I:26])=[CH:24][CH:25]=3)[CH2:15][CH2:16]2)[CH2:29][CH2:28]1

Participants

7

Reactant 4

HCID 176Acetic AcidHCID 123114CyclopropanecarboxaldehydeHCID 5049666Sodium triacetoxyborohydrideHCID 224903764-{[2-(3,5-Difluoro-phenyl)-acetylamino]-methyl}-4-(4-iodo-phenyl)-piperidine

Product 1

HCID 68533825N-[1-cyclopropylmethyl-4-(4-iodo-phenyl)-piperidin-4-ylmethyl]-2-(3,5-difluoro-phenyl)-acetamideYield 950%

Reagents, catalysts & solvents 2

HCID 111,2-DichloroethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a stirred solution of 4-{[2-(3,5-difluoro-phenyl)-acetylamino]-methyl}-4-(4-iodo-phenyl)-piperidine (0.038 g, ˜0.08 mmol) in ClCH2CH2Cl (0.5 mL) at room temperature under Ar was added cyclopropanecarboxaldehyde (0.008 mL, 0.096 mmol, 1.2 eq.) and HOAc (0.05 mL, 1% v/v). The mixture was stirred for 0.5 h then Na(OAc)3BH (0.026 g, 0.12 mmol, 1.5 eq.) was added and the mixture stirred for 16 h then diluted with EtOAc (5 mL) and washed with saturated aqueous NaHCO3 solution (5 mL) and saturated brine (5 mL). The organic layer was dried over anhydrous Na2SO4, filtered, concentrated by rotary evaporation, and dried under high vacuum to give N-[1-cyclopropylmethyl-4-(4-iodo-phenyl)-piperidin-4-ylmethyl]-2-(3,5-difluoro-phenyl)-acetamide (0.040 g, 0.76 mmol, 95%). MS (ESI): 525.2/526.2 (M+1).

Workup

  1. stirringthe mixture stirred for 16 h
  2. washwashed with saturated aqueous NaHCO3 solution (5 mL) and saturated brine (5 mL)
  3. dry with materialThe organic layer was dried over anhydrous Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated by rotary evaporation
  6. customdried under high vacuum

Sources & evidence

ORD record
ord-52982ec9be404e3dbffcc9f920965596
Source dataset
uspto-grants-2005_05
Patent number
US06887889B2

Reaction notes

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