Boron tribromide → HCID 68502543, Verbindung
Reaktionsgleichung
[CH:1]1([C:7]2[C:8]3[CH:9]=[CH:10][C:11]([C:27]([O:29]C)=[O:28])=[CH:12][C:13]=3[N:14]3[CH2:21][CH2:20][NH:19][CH2:18][C:17]4[CH:22]=[C:23]([F:26])[CH:24]=[CH:25][C:16]=4[C:15]=23)[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.B(Br)(Br)Br>C(Cl)Cl>[CH:1]1([C:7]2[C:8]3[CH:9]=[CH:10][C:11]([C:27]([OH:29])=[O:28])=[CH:12][C:13]=3[N:14]3[CH2:21][CH2:20][NH:19][CH2:18][C:17]4[CH:22]=[C:23]([F:26])[CH:24]=[CH:25][C:16]=4[C:15]=23)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6]1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
To a solution of methyl 14-cyclohexyl-3-fluoro-5,6,7,8-tetrahydroindolo[2,1-a][2,5]benzodiazocine-11-carboxylate (prepared as described in Example 18, Step 5) in DCM (0.01 M) was added dropwise 5 eq of a solution of BBr3 in DCM (1 M). The solution was stirred at RT for 30 min. Volatiles were removed in vacuo. The crude was then purified by automated RP-MS-HPLC (stationary phase: column Waters XTERRA prep. C18, 5 μm, 30×100 mm. Mobile phase: MeCN/H2O buffered with 0.1% TFA). Fractions containing the pure compound were combined and freeze dried to afford the title compound as a white powder (20%); MS (ES+) m/z 393 (M+H)+.