1: With n-butyllithium in tetrahydrofuran; cyclohexane
T=-75°C; 1.5 h;
2: With boric acid trimethyl ester in tetrahydrofuran; cyclohexane
T=-75 - 20°C;
3: With hydrogenchloride in tetrahydrofuran; cyclohexane; water
1 h;
参考文献
NEUROGEN CORPORATION
Patent: WO2005/110991 A1, 2005 ;
Location in patent: Page/Page column 47-48 ;
WO 2005/110991 A1