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2-Propanol, reaction products with ammonia, distn. residues → 5-(3-chlorophenyl)-alpha-(1-methyl-1H-imidazol-5-yl)-alpha-(4-methylphenyl)-tetrazolo[1,5-a]quinazoline-7-methanamine hydrate

HRID 1788065
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1788065
Cl.Cl[C:3]([C:31]1[N:35]([CH3:36])[CH:34]=[N:33][CH:32]=1)([C:24]1[CH:29]=[CH:28][C:27]([CH3:30])=[CH:26][CH:25]=1)[C:4]1[CH:5]=[C:6]2[C:11](=[CH:12][CH:13]=1)[N:10]1[N:14]=[N:15][N:16]=[C:9]1[N:8]=[C:7]2[C:17]1[CH:22]=[CH:21][CH:20]=[C:19]([Cl:23])[CH:18]=1.[NH3:37].CC([OH:41])C>C1COCC1>[OH2:41].[Cl:23][C:19]1[CH:18]=[C:17]([C:7]2[C:6]3[C:11](=[CH:12][CH:13]=[C:4]([C:3]([C:31]4[N:35]([CH3:36])[CH:34]=[N:33][CH:32]=4)([C:24]4[CH:25]=[CH:26][C:27]([CH3:30])=[CH:28][CH:29]=4)[NH2:37])[CH:5]=3)[N:10]3[N:14]=[N:15][N:16]=[C:9]3[N:8]=2)[CH:22]=[CH:21][CH:20]=1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

4

Edukt 2

HCID 183319422-Propanol, reaction products with ammonia, distn. residuesHCID 1317273757-[chloro(1-methyl-1H-imidazol-5-yl)(4-methylphenyl)methyl]-5-(3-chlorophenyl)-tetrazolo[1,5-a]quinazoline. hydrochloride

Produkt 1

HCID 688609215-(3-chlorophenyl)-alpha-(1-methyl-1H-imidazol-5-yl)-alpha-(4-methylphenyl)-tetrazolo[1,5-a]quinazoline-7-methanamine hydrateAusbeute 33 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028
Tetrahydrofuran
Lösungsmittel

Reaktionsbedingungen

Temperatur
5 °C

Versuchsvorschrift

A mixture of intermediate 26 (0.0083 mol) in THF (80 ml) was cooled to 5° C. under N2 flow. NH3/iPrOH (80 ml) was added dropwise. The mixture was stirred at 5° C. for 1 hours, then brought to room temperature. The mixture was stirred at room temperature overnight, poured out into ice water and extracted with DCM. The organic layer was separated, washed with water, dried (MgSO4), filtered and the solvent was evaporated. The residue was purified by column chromatography over silica gel (15-40 μm) (eluent: DCM/MeOH/NH4OH 96/4/0.2). The pure fractions were collected and the solvent was evaporated. The residue was crystallized from CH3CN. The precipitate was filtered off and dried, yielding 1.37 g (33%) of 5-(3-chlorophenyl)-α-(1-methyl-1H-imidazol-5-yl)-α-(4-methylphenyl)-tetrazolo[1,5-a]quinazoline-7-methanamine hydrate (1:1) (intermediate 27), mp. 150° C.

Aufarbeitung

  1. custombrought to room temperature
  2. stirringThe mixture was stirred at room temperature overnight
  3. extractionextracted with DCM
  4. customThe organic layer was separated
  5. washwashed with water
  6. dry with materialdried (MgSO4)
  7. filtrationfiltered
  8. customthe solvent was evaporated
  9. customThe residue was purified by column chromatography over silica gel (15-40 μm) (eluent: DCM/MeOH/NH4OH 96/4/0.2)
  10. customThe pure fractions were collected
  11. customthe solvent was evaporated
  12. customThe residue was crystallized from CH3CN
  13. filtrationThe precipitate was filtered off
  14. customdried

Quellen und Nachweise

ORD-Eintrag
ord-a3801d7d96d54cd2841fea0fa8ce85b6
Quelldatensatz
uspto-grants-2009_03
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07511138B2

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