Diethyl Ether → HCID 18631455, compound

HRID 1031797Notes

Reaction equation

HRID 1031797 reaction equation
C([O:5][C:6](=[O:49])[CH2:7][N:8]([C:18](=[O:48])[C@H:19]([CH3:47])[NH:20][C@H:21]([C:42]([O:44][CH2:45][CH3:46])=[O:43])[CH2:22][CH2:23][CH2:24][CH2:25][CH:26]1[CH2:31][CH2:30][N:29](C(OCC2C=CC=CC=2)=O)[CH2:28][CH2:27]1)[CH:9]1[CH2:17][C:16]2[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=2)[CH2:10]1)(C)(C)C.[BrH:50].C(O)(=O)C.C(OCC)C>C(O)(=O)C>[BrH:50].[BrH:50].[CH2:45]([O:44][C:42]([C@@H:21]([NH:20][C@H:19]([C:18]([N:8]([CH:9]1[CH2:17][C:16]2[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=2)[CH2:10]1)[CH2:7][C:6]([OH:49])=[O:5])=[O:48])[CH3:47])[CH2:22][CH2:23][CH2:24][CH2:25][CH:26]1[CH2:27][CH2:28][NH:29][CH2:30][CH2:31]1)=[O:43])[CH3:46]

Participants

5

Reactant 3

HCID 3283Diethyl EtherHCID 10462198HCID 10462198, compoundHCID 21893785Acetic Acid Mixture with Hydrobromic Acid

Product 1

HCID 18631455HCID 18631455, compound

Reagents, catalysts & solvents 1

HCID 176Acetic AcidSolvent

Procedure

In 2 ml of acetic acid is dissolved 0.4 g of N-[N-[(S)-5-(1-benzyloxycarbonyl-4-piperidyl)-1-ethoxycarbonylpentyl]-L-alanyl]-N-(indan-2-yl)glycine tert-butyl ester, and 2 ml of 30% hydrogen bromide-acetic acid solution is added to the solution, followed by standing at room temperature for 1 hour. 50 ml of ethyl ether is added to the reaction mixture, followed by shaking, and the supernatant layer is removed by decantation. The colorless precipitate is rinsed with ethyl ether and dried under reduced pressure to give 0.3 g of N-[N-[(S)-1-ethoxycarbonyl-5-(4-piperidyl)pentyl]-L-alanyl]-N-(indan-2-yl)glycine dihydrobromide as a colorless powder.

Workup

  1. additionis added to the solution
  2. customthe supernatant layer is removed by decantation
  3. washThe colorless precipitate is rinsed with ethyl ether
  4. customdried under reduced pressure

Sources & evidence

ORD record
ord-5412b92fdcb7424b9e1a28be0b7a59f2
Source dataset
uspto-grants-1990_09
Patent number
US04954625

Reaction notes

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