Hydrochloric Acid → 7-[[(7S)-8-isopropyl-7-ethyl-5-methyl-6-oxo-7H-pteridin-2-yl]amino]-2,3-dihydrobenzofuran-4-carboxylic acid

HRID 2364767Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2364767
Cl[C:2]1[N:11]=[CH:10][C:9]2[N:8]([CH3:12])[C:7](=[O:13])[C@H:6]([CH2:14][CH3:15])[N:5]([CH:16]([CH3:18])[CH3:17])[C:4]=2[N:3]=1.C[CH:20]1[CH2:24][C:23]2=[C:25]([C:30]([OH:32])=[O:31])[CH:26]=[CH:27][C:28]([NH2:29])=[C:22]2[O:21]1.Cl>C(O)C.O>[CH:16]([N:5]1[C:4]2[N:3]=[C:2]([NH:29][C:28]3[CH:27]=[CH:26][C:25]([C:30]([OH:32])=[O:31])=[C:23]4[C:22]=3[O:21][CH2:20][CH2:24]4)[N:11]=[CH:10][C:9]=2[N:8]([CH3:12])[C:7](=[O:13])[C@@H:6]1[CH2:14][CH3:15])([CH3:18])[CH3:17]

Komponenten

6

Edukt 3

HCID 313Hydrochloric AcidHCID 68107480Methyl 7-amino-2,3-dihydrobenzofuran-4-carboxylic acidHCID 86668262(7S)-2-chloro-8-isopropyl-7-ethyl-5-methyl-7H-pteridin-6-one

Produkt 1

HCID 510369997-[[(7S)-8-isopropyl-7-ethyl-5-methyl-6-oxo-7H-pteridin-2-yl]amino]-2,3-dihydrobenzofuran-4-carboxylic acidAusbeute 57,9 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 702EthanolLösungsmittelHCID 962WaterLösungsmittel

Versuchsvorschrift

(7S)-2-Chloro-8-isopropyl-7-ethyl-5-methyl-7H-pteridin-6-one 43d (2.50 g, 9.24 mmol) and methyl 7-amino-2,3-dihydrobenzofuran-4-carboxylateic acid 1g (1.50 g, 8.40 mmol) were dissolved in 120 mL of the mixture solvent of ethanol and water (V/V=1:2) followed by the addition of 1.5 mL of concentrated hydrochloric acid. The reaction mixture was heated to reflux for 24 hours with stirring and the precipitate was filtered. The filter cake was washed with dichloromethane (50 mL×3) and dried by heating to obtain the crude compound 7-[[(7S)-8-isopropyl-7-ethyl-5-methyl-6-oxo-7H-pteridin-2-yl]amino]-2,3-dihydrobenzofuran-4-carboxylic acid 43e (2 g) as a gray solid, which was used in the next step without further furification.

Aufarbeitung

  1. temperatureThe reaction mixture was heated
  2. temperatureto reflux for 24 hours
  3. filtrationthe precipitate was filtered
  4. washThe filter cake was washed with dichloromethane (50 mL×3)
  5. customdried
  6. temperatureby heating

Quellen und Nachweise

ORD-Eintrag
ord-1d217de8ecda4d32a1e377ceafecded6
Quelldatensatz
uspto-grants-2014_04
Patentnummer
US08691822B2

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