1: With triphenylphosphine; diethylazodicarboxylate in tetrahydrofuran
T=0 - 20°C; 18 h;
2: With ammonium formate; palladium 10 on activated carbon in methanol
T=20°C; 3 h;
参考文献
Pfizer Inc
Patent: US2006/160786 A1, 2006 ;
Location in patent: Page/Page column 40 ;
US 20060160786 A1