Hydrochloric Acid → Ammonium Hydroxide

HRID 1630784Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1630784
C[O:2][C:3](=[O:28])[C:4]1[CH:9]=[CH:8][C:7]([CH2:10][N:11]2[C:19]3[C:14](=[CH:15][C:16]([Cl:20])=[CH:17][CH:18]=3)[C:13]([CH3:21])=[C:12]2[C:22]2[CH:23]=[N:24][CH:25]=[CH:26][CH:27]=2)=[CH:6][CH:5]=1.[OH-].[Na+].Cl>CO>[NH4+:11].[OH-:2].[Cl:20][C:16]1[CH:15]=[C:14]2[C:19](=[CH:18][CH:17]=1)[N:11]([CH2:10][C:7]1[CH:8]=[CH:9][C:4]([C:3]([OH:28])=[O:2])=[CH:5][CH:6]=1)[C:12]([C:22]1[CH:23]=[N:24][CH:25]=[CH:26][CH:27]=1)=[C:13]2[CH3:21]

Komponenten

6

Edukt 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 445541384-(5-chloro-3-methyl-2-pyridin-3-yl-1H-indol-1-ylmethyl)-benzoic acid methyl ester

Produkt 2

HCID 14923Ammonium HydroxideAusbeute 0,1 %HCID 133620894-(5-chloro-3-methyl-2-pyridin-3-yl-1H-indol-1-ylmethyl)-benzoic acid

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Versuchsvorschrift

4-(5-Chloro-3-methyl-2-pyridin-3-yl-1H-indol-1-ylmethyl)-benzoic acid methyl ester (Example 11, 200 mg, 0.51 mmol) in methanol (5 mL) is added to 5M aqueous NaOH (1 mL, 5 mmol) and the mixture is stirred at room temperature for 5 h. Concentrated HCl (4.4 mL) is added to neutralize the reaction mixture and the solvents are removed in vacuo. The residue is redissolved in methanol and purified by reverse phase HPLC with Xbridge Shield RP18 column and a 0.1% NH4OH in acetonitrile gradient to afford 4-(5-chloro-3-methyl-2-pyridin-3-yl-1H-indol-1-ylmethyl)-benzoic acid. 1H NMR (400 MHz, MeOD) δ ppm 2.25 (s, 3H), 5.34 (s, 2H), 6.82 (d, J=8.1 Hz, 2H), 7.15 (dd, J=8.6, 2.0 Hz, 1H), 7.31 (d, J=8.6 Hz, 1H), 7.50 (dd, J=7.7, 4.9 Hz, 1H), 7.61 (d, J=2.0 Hz, 1H), 7.78-7.80 (m, 1H), 7.81 (d, J=8.1 Hz, 2H), 8.50 (s, 1H), 8.56 (br. s, 1H). HRMS (ESI) m/z 377.1072 [(M+H)+ Calcd for C22H18ClN2O2: 377.1057].

Aufarbeitung

  1. customthe solvents are removed in vacuo
  2. dissolutionThe residue is redissolved in methanol
  3. custompurified by reverse phase HPLC with Xbridge Shield RP18 column

Quellen und Nachweise

ORD-Eintrag
ord-5701a655332142e5a8f82ce0bcb4e2e2
Quelldatensatz
uspto-grants-2014_07
Patentnummer
US08791141B2

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