4-(4-aminobutyl)phenol Hydrobromide → 4-(4-Hydroxyphenyl)butylamidino-3,5-diamino-6-chloropyrazinecarboxamide hydrochloride

HRID 25096Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 25096
I.[NH2:2][C:3]1[C:4]([C:11]([NH:13][C:14](=[NH:17])SC)=[O:12])=[N:5][C:6]([Cl:10])=[C:7]([NH2:9])[N:8]=1.Br.[OH:19][C:20]1[CH:25]=[CH:24][C:23]([CH2:26][CH2:27][CH2:28][CH2:29][NH2:30])=[CH:22][CH:21]=1>C1COCC1.C(N(CC)CC)C>[ClH:10].[OH:19][C:20]1[CH:21]=[CH:22][C:23]([CH2:26][CH2:27][CH2:28][CH2:29][NH:30][C:14]([NH:13][C:11]([C:4]2[C:3]([NH2:2])=[N:8][C:7]([NH2:9])=[C:6]([Cl:10])[N:5]=2)=[O:12])=[NH:17])=[CH:24][CH:25]=1

Komponenten

5

Edukt 2

HCID 115505224-(4-aminobutyl)phenol HydrobromideHCID 140329753methyl N-(3,5-diamino-6-chloropyrazine-2-carbonyl)carbamimidothioate;hydroiodide

Produkt 1

HCID 1784793374-(4-Hydroxyphenyl)butylamidino-3,5-diamino-6-chloropyrazinecarboxamide hydrochlorideAusbeute 84,4 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 8028TetrahydrofuranLösungsmittelHCID 8471TriethylamineLösungsmittel

Versuchsvorschrift

1-(3,5-Diamino-6-chloropyrazinoyl-2-methyl-pseudothiourea hydroiodide (0.4 g, 1.03 mmol) was added to a suspension of 4-(4-hydroxyphenyl)butylamine hydrobromide (4) (0.8 g, 32 mmol) in a mixture of THF (35 mL) and triethylamine (3 mL). The reaction mixture was stirred in the boiling solvent for 3 h, then the supernatant was separated and the solvent was removed under reduced pressure. The oily residue was washed with water (2×30 mL), ether (3×30 mL) and then 10% HCl (40 mL) was added. The mixture was vigorously stirred for 10 min then the yellow solid was filtered off, dried and recrystallized twice from ethanol to give 5 (0.18 g, 41%) as yellow solid. Purity is 98% by HPLC, retention time is 9.77 min. 1H NMR (300 MHz, DMSO-d6) δ1.56 (br s, 4H), 2.48 (br s, 2H), 3.35 (m, 2H), 6.65 (d, 2H), 6.95 (d, 2H), 7.50 (br s, 2H), 8.75 (br s, 1H), 9.05 (br s, 1H), 9.33 (br s, 2H), 10.55 (s, 1H). 13C NMR (75 MHz, CD3OD) 28.7, 29.8, 35.4, 42.4, 111.2, 116.1, 122.0, 130.0, 134.0, 155.0, 156.1, 156.8, 157.5, 167.0. APCI MS m/z=378 [C16H20ClN7O2+H]+.

Aufarbeitung

  1. customthe supernatant was separated
  2. customthe solvent was removed under reduced pressure
  3. washThe oily residue was washed with water (2×30 mL), ether (3×30 mL)
  4. addition10% HCl (40 mL) was added
  5. stirringThe mixture was vigorously stirred for 10 min
  6. filtrationthe yellow solid was filtered off
  7. customdried
  8. customrecrystallized twice from ethanol

Quellen und Nachweise

ORD-Eintrag
ord-5d13f95509784713821f231dd409932f
Quelldatensatz
uspto-grants-2005_02
Patentnummer
US06858614B2

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