Sodium Methoxide → 9-Deaza-9-(3-thienylmethyl)guanine

HRID 266227Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 266227
C([N:5]([C:13]1[C:17]([CH2:18][C:19]2[CH:23]=[CH:22][S:21][CH:20]=2)=[CH:16][NH:15][C:14]=1[C:24]([O:26]C)=O)[C:6]([NH:8]C(OC)=O)=[NH:7])(OC)=O.C[O-].[Na+]>CO>[NH2:7][C:6]1[NH:8][C:24](=[O:26])[C:14]2[NH:15][CH:16]=[C:17]([CH2:18][C:19]3[CH:23]=[CH:22][S:21][CH:20]=3)[C:13]=2[N:5]=1

Komponenten

4

Edukt 2

HCID 10942334Sodium MethoxideHCID 140382079HCID 140382079, Verbindung

Produkt 1

HCID 1355124689-Deaza-9-(3-thienylmethyl)guanineAusbeute 85 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Versuchsvorschrift

Methyl 3-(N,N'-bis-carbomethoxyguanidinyl)-4-(3-thienylmethyl)-1H-pyrrole-2-carboxylate, obtained from Example 23 (3.94 g, 0.01 mol), sodium methoxide (1.62 g, 0.03 mol) and methanol (100 mL) were stirred together and boiled under reflux for six hours. The solvent was evaporated in vacuo and the residue was treated with water (200 mL) containing acetic acid (10 mL). The solid was collected by filtration and crystallized from ethanol to give 2.1 g (85%) of 2-amino-7-(3-thienylmethyl)-4-oxo-3H,5H-pyrrolo[3,2-d]pyrimidine as pale-yellow needles, mp 222°-224° C. with gas evolution, followed by resolidification and remelting at 268°-270° C. (lit.1 271°-272° C.).

Aufarbeitung

  1. temperatureunder reflux for six hours
  2. customThe solvent was evaporated in vacuo
  3. additionthe residue was treated with water (200 mL)
  4. additioncontaining acetic acid (10 mL)
  5. filtrationThe solid was collected by filtration
  6. customcrystallized from ethanol

Quellen und Nachweise

ORD-Eintrag
ord-21b3279b8c984897b6eef77edcb53c98
Quelldatensatz
uspto-grants-1997_07
Patentnummer
US05650511

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