Benzaldehyde → HCID 45275133, compound

HRID 1622346Notes

Reaction equation

HRID 1622346 reaction equation
N[CH2:2][CH2:3][NH:4][C:5]([CH:7]1[CH2:12][CH2:11][N:10]([C:13]2[C:18]([Cl:19])=[CH:17][N:16]=[CH:15][C:14]=2[Cl:20])[CH2:9][CH2:8]1)=[O:6].[CH:21](=O)[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1.[C:29]([BH3-])#[N:30].[Na+]>CO>[CH2:21]([N:30]([CH2:29][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1)[CH2:2][CH2:3][NH:4][C:5]([CH:7]1[CH2:8][CH2:9][N:10]([C:13]2[C:14]([Cl:20])=[CH:15][N:16]=[CH:17][C:18]=2[Cl:19])[CH2:11][CH2:12]1)=[O:6])[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1

Participants

5

Reactant 3

HCID 240BenzaldehydeHCID 5003444Sodium cyanoborohydrideHCID 45275021HCID 45275021, compound

Product 1

HCID 45275133HCID 45275133, compoundYield 54%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

To a solution of N-(2-aminoethyl)-1-(3,5-dichloropyridin-4-yl)piperidine-4-carboxamide E13 (20 mg, 0.060 mmol) in MeOH (2 mL) was added benzaldehyde (19 μL, 0.19 mmol). After stirring for 45 min, sodium cyanoborohydride (12 mg, 0.19 mmol) was added and the mixture was stirred for a further 16 h. The solvent was removed under reduced pressure, the residue was dissolved in EtOAc (20 mL), washed with a saturated solution of sodium hydrogencarbonate (25 mL), brine (25 mL), dried (MgSO4) and the solvent was removed under reduced pressure. The crude product was purified by preparative tlc on silica gel (CH2Cl2, MeOH, 9:1) to furnish the title compound as a white solid (14 mg, 54%), m.p. 147-149° C.; umax (CHCl3)/cm−1 3007, 2837, 1658, 1558, 1509, 1457, 1146; m/z (ESI) C27H31Cl2N4O requires 497.1869, found [M+H]+ 497.1872.

Workup

  1. stirringthe mixture was stirred for a further 16 h
  2. customThe solvent was removed under reduced pressure
  3. dissolutionthe residue was dissolved in EtOAc (20 mL)
  4. washwashed with a saturated solution of sodium hydrogencarbonate (25 mL), brine (25 mL)
  5. dry with materialdried (MgSO4)
  6. customthe solvent was removed under reduced pressure
  7. customThe crude product was purified by preparative tlc on silica gel (CH2Cl2, MeOH, 9:1)

Sources & evidence

ORD record
ord-68acebd68e70468290d6f31bfb763f20
Source dataset
uspto-grants-2014_07
Patent number
US08778925B2

Reaction notes

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