Hydrochloric Acid → 2(R)-[[4-methoxybenzenesulfonyl](benzyl)amino]-2-[(2-methyl-5-tetrazolyl)methyl]acetic acid

HRID 264325Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 264325
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([S:9]([N:12]([CH2:25][C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)[C@H:13]([CH2:18][C:19]2[N:20]=[N:21][N:22]([CH3:24])[N:23]=2)[C:14]([O:16]C)=[O:15])(=[O:11])=[O:10])=[CH:5][CH:4]=1.O.[OH-].[Li+].Cl>O1CCCC1.O>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]([S:9]([N:12]([CH2:25][C:26]2[CH:27]=[CH:28][CH:29]=[CH:30][CH:31]=2)[C@H:13]([CH2:18][C:19]2[N:20]=[N:21][N:22]([CH3:24])[N:23]=2)[C:14]([OH:16])=[O:15])(=[O:10])=[O:11])=[CH:7][CH:8]=1

Komponenten

6

Edukt 3

HCID 313Hydrochloric AcidHCID 168937Lithium hydroxide, monohydrateHCID 22856288Methyl 2(R)-[[4-methoxybenzenesulfonyl](benzyl)amino]-2-[(2-methyl-5-tetrazolyl)methyl]acetate

Produkt 1

HCID 228562822(R)-[[4-methoxybenzenesulfonyl](benzyl)amino]-2-[(2-methyl-5-tetrazolyl)methyl]acetic acidAusbeute 98 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

Methyl 2(R)-[[4-methoxybenzenesulfonyl](benzyl)amino]-2-[(2-methyl-5-tetrazolyl)methyl]acetate (1.0 g, 2.27 mmol) is dissolved in tetrahydrofuran (11.3 mL) and water (11.3 mL). To this solution is added lithium hydroxide hydrate (0.095 g, 2.27 mmol), and the reaction is stirred at room temperature for 2 hours. The reaction is then acidified to pH=~3 using 1N hydrochloric acid, and extracted well with ethyl acetate. The combined organic extracts are washed with brine, dried (Na2SO4), and the solvent is evaporated to provide 2(R)-[[4-methoxybenzenesulfonyl](benzyl)amino]-2-[(2-methyl-5-tetrazolyl)methyl]acetic acid (0.96 g).

Aufarbeitung

  1. extractionextracted well with ethyl acetate
  2. washThe combined organic extracts are washed with brine
  3. dry with materialdried (Na2SO4)
  4. customthe solvent is evaporated

Quellen und Nachweise

ORD-Eintrag
ord-25eb088b0ca34bc2848c7bfe59f586a5
Quelldatensatz
uspto-grants-1997_07
Patentnummer
US05646167

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