Water → 5-Amino-7,8-dihydro-8-(2-methoxyethyl)-7-oxo-2-phenylpyrido[2,3-d]pyrimidine-6-carboxylic acid ethyl ester

HRID 127390

Reaktionsgleichung

Reaktionsgleichung von HRID 127390
[C:1]([C:3]1[C:4]([NH:15][CH2:16][CH2:17][O:18][CH3:19])=[N:5][C:6]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=2)=[N:7][CH:8]=1)#[N:2].[CH2:20]([O:22]CC)[CH3:21].C([CH:27]([C:31](Cl)=[O:32])[C:28](Cl)=[O:29])C.O>C(O)C.C(O)(=O)C>[CH2:20]([O:22][C:31]([C:27]1[C:28](=[O:29])[N:15]([CH2:16][CH2:17][O:18][CH3:19])[C:4]2[N:5]=[C:6]([C:9]3[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=3)[N:7]=[CH:8][C:3]=2[C:1]=1[NH2:2])=[O:32])[CH3:21]

Komponenten

7

Versuchsvorschrift

To 9.3 g. (0.037 mole) of 5-cyano-4-(2-methoxyethylamino)-2-phenyl pyrimidine in 350 ml. of diethyl ether was added 2.8 g. (0.019 mole) of ethyl malonyl chloride and this mixture was stirred at room temperature for 4.5 hours. Then the solid material was filtered off and the filtrate evaporated to dryness. Ethanol was added until a solution was obtained and this solution was added to 0.85 g. (0.057 mole) of Na in ethanol and stirred 20 minutes. A little water was added and the solution was acidified with acetic acid. The solid product was collected on a suction filter and recrystallized from ethanol to give 2.0 g. of product--m.p. 245°-247° C.

Aufarbeitung

  1. filtrationThen the solid material was filtered off
  2. customthe filtrate evaporated to dryness
  3. additionEthanol was added until a solution
  4. customwas obtained
  5. additionthis solution was added to 0.85 g
  6. customThe solid product was collected on a suction
  7. filtrationfilter
  8. customrecrystallized from ethanol
  9. customto give 2.0 g

Quellen und Nachweise

ORD-Eintrag
ord-9e151dde6d43438eb364f8630d58165a
Quelldatensatz
uspto-grants-1981_03
Patentnummer
US04255568

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