Benzyl {(1S)-1-[2-({(2S)-2,5-bis[(tert-butoxycarbonyl)amino]pentyl}amino)-2-oxoethyl]-4-[(tert-butoxycarbonyl)amino]butyl}carbamate → Tert-butyl[(4s)-4-amino-6-({(2s)-2,5-bis[(tert-butoxycarbonyl)amino]pentyl}amino)-6-oxohexyl]carbamate

HRID 269669Notes

Reaction equation

HRID 269669 reaction equation
C(OC(=O)[NH:10][C@H:11]([CH2:23][C:24]([NH:26][CH2:27][C@@H:28]([NH:40][C:41]([O:43][C:44]([CH3:47])([CH3:46])[CH3:45])=[O:42])[CH2:29][CH2:30][CH2:31][NH:32][C:33]([O:35][C:36]([CH3:39])([CH3:38])[CH3:37])=[O:34])=[O:25])[CH2:12][CH2:13][CH2:14][NH:15][C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])C1C=CC=CC=1>[Pd].C(O)C>[C:19]([O:18][C:16](=[O:17])[NH:15][CH2:14][CH2:13][CH2:12][C@H:11]([NH2:10])[CH2:23][C:24]([NH:26][CH2:27][C@@H:28]([NH:40][C:41]([O:43][C:44]([CH3:47])([CH3:46])[CH3:45])=[O:42])[CH2:29][CH2:30][CH2:31][NH:32][C:33]([O:35][C:36]([CH3:37])([CH3:38])[CH3:39])=[O:34])=[O:25])([CH3:20])([CH3:21])[CH3:22]

Participants

4

Reactant 1

HCID 86625285Benzyl {(1S)-1-[2-({(2S)-2,5-bis[(tert-butoxycarbonyl)amino]pentyl}amino)-2-oxoethyl]-4-[(tert-butoxycarbonyl)amino]butyl}carbamate

Product 1

HCID 89222684Tert-butyl[(4s)-4-amino-6-({(2s)-2,5-bis[(tert-butoxycarbonyl)amino]pentyl}amino)-6-oxohexyl]carbamate

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 702EthanolSolvent

Procedure

22 mg of palladium on activated carbon (10%) are added to a mixture of 0.146 g (0.22 mmol) of the compound from Example 234A in 10 ml of ethanol, and the mixture is then hydrogenated under atmospheric pressure for 12 h. The reaction mixture is filtered through kieselguhr, and the filtrate is concentrated in vacuo and dried under high vacuum. The crude product is reacted without further purification.

Workup

  1. filtrationThe reaction mixture is filtered through kieselguhr
  2. concentrationthe filtrate is concentrated in vacuo
  3. customdried under high vacuum
  4. customThe crude product is reacted without further purification

Sources & evidence

ORD record
ord-5f354d0193994eb287d5042339751210
Source dataset
uspto-grants-2008_11
Patent number
US07446102B2

Reaction notes

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