HCID 69543981, compound → HCID 23598346, compound

HRID 891654Notes

Reaction equation

HRID 891654 reaction equation
C(OC(=O)[NH:10][C@H:11]([CH2:16][O:17][Si:18]([C:31]([CH3:34])([CH3:33])[CH3:32])([C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1)[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1)[CH2:12][CH:13]([CH3:15])[CH3:14])C1C=CC=CC=1>CO.[Pd]>[Si:18]([O:17][CH2:16][C@@H:11]([NH2:10])[CH2:12][CH:13]([CH3:14])[CH3:15])([C:31]([CH3:33])([CH3:34])[CH3:32])([C:25]1[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=1)[C:19]1[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=1

Participants

4

Reactant 1

HCID 69543981HCID 69543981, compound

Product 1

HCID 23598346HCID 23598346, compoundYield 84.4%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 887MethanolSolvent

Procedure

A solution of [(1S)-1-(t-butyldiphenylsilyloxymethyl)-3-methylbutyl]carbamic acid benzyl ester (7.35 g, 15.0 mmol) (obtained as described in Reference Example 37(1)) in methanol (220 ml) was subjected to catalytic hydrogenation in the presence of 10% palladium on charcoal (7.35 g) at room temperature for 4 hours. After checking the completion of the reaction, the reaction mixture was filtered in order to remove the catalyst and the filtrate concentrated under reduced pressure. The residue was purified by chromatography on a silica gel column using methylene chloride:methanol (98:2→9:1) as the eluant to afford (1S)-1-(t-butyldiphenylsilyloxymethyl)-3-methylbutylamine (4.50 g, yield 84%) as a colorless oil.

Workup

  1. customthe completion of the reaction
  2. filtrationthe reaction mixture was filtered in order
  3. customto remove the catalyst
  4. concentrationthe filtrate concentrated under reduced pressure
  5. customThe residue was purified by chromatography on a silica gel column

Sources & evidence

ORD record
ord-7598767e59594ef08653c4212add07a1
Source dataset
uspto-grants-2006_02
Patent number
US07001897B2

Reaction notes

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