1,3,4,5-Tetrahydro-3-[1-(phenylmethyl)-4-piperidinyl]-2H-1,3-benzodiazepin-2-one → 3-(Piperidin-4-yl)-4,5-dihydro-1H-benzo[d][1,3]diazepin-2(3H)-one

HRID 2250249Notes

Reaction equation

HRID 2250249 reaction equation
C([N:8]1[CH2:13][CH2:12][CH:11]([N:14]2[CH2:20][CH2:19][C:18]3[CH:21]=[CH:22][CH:23]=[CH:24][C:17]=3[NH:16][C:15]2=[O:25])[CH2:10][CH2:9]1)C1C=CC=CC=1>CO.[Pd]>[NH:8]1[CH2:9][CH2:10][CH:11]([N:14]2[CH2:20][CH2:19][C:18]3[CH:21]=[CH:22][CH:23]=[CH:24][C:17]=3[NH:16][C:15]2=[O:25])[CH2:12][CH2:13]1

Participants

4

Reactant 1

HCID 162024881,3,4,5-Tetrahydro-3-[1-(phenylmethyl)-4-piperidinyl]-2H-1,3-benzodiazepin-2-one

Product 1

HCID 113795873-(Piperidin-4-yl)-4,5-dihydro-1H-benzo[d][1,3]diazepin-2(3H)-oneYield 68%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 887MethanolSolvent

Procedure

3-(1-Benzyl-piperidin-4-yl)-1,3,4,5-tetrahydro-benzo[d][1,3]diazepin-2-one (100 mg, 0.3 mmol) in methanol (5 mL) was flushed with nitrogen, and treated with palladium on charcoal (10%, 10 mg). The flask was flushed with hydrogen and allowed to stir under an atmosphere of hydrogen overnight. The reaction was flushed with nitrogen, filtered through celite, and concentrated. Column chromatography gave 50 mg (68%) of the desired material. LC/MS: tR=1.07 min, 246.26 (MH)+.

Workup

  1. customThe flask was flushed with hydrogen
  2. customThe reaction was flushed with nitrogen
  3. filtrationfiltered through celite
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-ce1d1d9e007f4e168ce29c615d92a272
Source dataset
uspto-grants-2008_01
Patent number
US07314883B2

Reaction notes

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