Potassium Carbonate → HCID 18540402, Verbindung

Reaktionsgleichung

[CH:1]12[O:9][CH:5]([CH2:6][NH:7][CH2:8]1)[CH2:4][N:3]([C:10]([O:12][C:13]([CH3:16])([CH3:15])[CH3:14])=[O:11])[CH2:2]2.Cl[CH2:18][CH2:19][CH2:20][CH2:21][C:22]1[CH:27]=[CH:26][N:25]=[CH:24][CH:23]=1.BrBr.C([O-])([O-])=O.[K+].[K+]>>[N:25]1[CH:26]=[CH:27][C:22]([CH2:21][CH2:20][CH2:19][CH2:18][N:7]2[CH2:6][CH:5]3[O:9][CH:1]([CH2:2][N:3]([C:10]([O:12][C:13]([CH3:16])([CH3:15])[CH3:14])=[O:11])[CH2:4]3)[CH2:8]2)=[CH:23][CH:24]=1

Komponenten

Edukt 4

HCID 11430Potassium Carbonate

HCID 24408Bromine

HCID 109539414-(4-Chlorobutyl)pyridine

HCID 185404123-Boc-9-oxa-3,7-diazabicyclo[3.3.1]nonane

Produkt 1

HCID 18540402HCID 18540402, VerbindungAusbeute 45,5 %

Versuchsvorschrift

tert-Butyl 9-oxa-3,7-diazabicyclo[3.3.1]nonane-3-carboxylate (1.35 g, 5.9 mmol, see Preparation A and Preparation C(iii) above) was mixed with 4-(4-chlorobutyl)pyridine (1.35 g, 7.37 mmol, see Example 10(i) above), Br2 (0.094 g, 0.59 mmol) and K2CO3 (3.26 g, 23.6 mmol). The mixture was refluxed under argon for 3 days. The reaction mixture was filtered, evaporated and purified by chromatography (DCM, 2-5% MeOH) giving 0.97 g (44%) of the sub-title compound.