Hydrochloric Acid → [(4-(4-Methyl-phenyl)pyridine-2-carbonyl)-amino]-acetic acid

HRID 1798004Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1798004
C[O:2][C:3](=[O:21])[CH2:4][NH:5][C:6]([C:8]1[CH:13]=[C:12]([C:14]2[CH:19]=[CH:18][C:17]([CH3:20])=[CH:16][CH:15]=2)[CH:11]=[CH:10][N:9]=1)=[O:7].O.O[Li].O.Cl>C1COCC1>[CH3:20][C:17]1[CH:16]=[CH:15][C:14]([C:12]2[CH:11]=[CH:10][N:9]=[C:8]([C:6]([NH:5][CH2:4][C:3]([OH:21])=[O:2])=[O:7])[CH:13]=2)=[CH:19][CH:18]=1

Komponenten

6

Edukt 4

HCID 313Hydrochloric AcidHCID 962WaterHCID 168937Lithium hydroxide, monohydrateHCID 24891097[(4-(4-Methylphenyl)pyridine-2-carbonyl)amino]-acetic acid methyl ester

Produkt 1

HCID 24891149[(4-(4-Methyl-phenyl)pyridine-2-carbonyl)-amino]-acetic acidAusbeute 12 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

To a solution of [(4-(4-methyl-phenyl)pyridine-2-carbonyl)-amino]-acetic acid methyl ester, 24, (0.092 g, 0.32 mmol) in THF (2 mL) at room temperature is added H2O (1 mL) and LiOH.H2O (0.027 g, 0.64 mmol). The reaction is stirred for 16 hours after which time the solution is acidified using 1M HCl. The solvents are removed under reduced pressure and the solid that remains is suspended in a mixture of THF: MeOH and filtered. The filtrate is concentrated under reduced pressure and the resulting solid is triturated with MeOH and collected by filtration to provide 0.012 g (12% yield) of the desired compound as a colorless solid. 1H NMR (250 MHz, MeOD) δ ppm 8.69 (1 H, d, J=4.8 Hz), 8.38 (1 H, s), 7.86 (1 H, d, J=6.2 Hz), 7.72 (2 H, d, J=8.1 Hz), 7.38 (1 H, d, J=7.9 Hz), 4.21 (1 H, s), 2.44 (2 H, s). HPLC-MS: m/z 271 [M+H]+.

Aufarbeitung

  1. customThe solvents are removed under reduced pressure
  2. additionthe solid that remains is suspended in a mixture of THF
  3. filtrationMeOH and filtered
  4. concentrationThe filtrate is concentrated under reduced pressure
  5. customthe resulting solid is triturated with MeOH
  6. filtrationcollected by filtration

Quellen und Nachweise

ORD-Eintrag
ord-43fe952c6e8d444c9d0e897635db0772
Quelldatensatz
uspto-grants-2013_01
Patentnummer
US08343952B2

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