Hydrochloric Acid → Ureidovaline

HRID 1603816Notes

Reaction equation

HRID 1603816 reaction equation
C[O:2][C:3](=[O:22])[C@H:4]([CH:19]([CH3:21])[CH3:20])[NH:5][C:6]([N:8]([CH3:18])[CH2:9][C:10]1[N:11]=[C:12]([CH:15]([CH3:17])[CH3:16])[S:13][CH:14]=1)=[O:7].[Li+].[OH-].Cl>O1CCOCC1>[CH3:18][N:8]([C:6]([NH:5][C@H:4]([C:3]([OH:22])=[O:2])[CH:19]([CH3:20])[CH3:21])=[O:7])[CH2:9][C:10]1[N:11]=[C:12]([CH:15]([CH3:17])[CH3:16])[S:13][CH:14]=1

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 3939Lithium HydroxideHCID 10520283N-((N-Methyl-N-((2-isopropyl-4-thiazolyl)methyl)amino)carbonyl)-L-valine Methyl Ester

Product 1

HCID 9818282UreidovalineYield 81.6%

Reagents, catalysts & solvents 1

HCID 312751,4-DioxaneSolvent

Procedure

A solution of 1.42 g (4.3 mmol) N-((N-methyl-N-((2-isopropyl-4-thiazolyl)methyl)amino)carbonyl)-L-valine methyl ester in 17 ml of dioxane was treated with 17.3 ml of 0.50 M aqueous LiOH. The resulting solution was stirred at ambient temperature for 30 m in, treated with 8.7 ml of 1 M HCl, and concentrated in vacuo. The residue was taken up in dichloromethane, washed with water, dried over Na2SO4, and concentrated in vacuo to provide 1.1 g (81%) of the desired compound. Mass spectrum: (M+H)+ =314.

Workup

  1. concentrationconcentrated in vacuo
  2. washwashed with water
  3. dry with materialdried over Na2SO4
  4. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-a00c7e7c6c1a437985148cb80259c10a
Source dataset
uspto-grants-1999_11
Patent number
US05990135

Reaction notes

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