1: With hydrogen; acetic acid; palladium on activated charcoal P=2585.81 Torr; 24 h; 2: With toluene-4-sulfonic acid in ethanol 1 h; Heating; Further stages.;
参考文献
Wyeth
Patent: US2006/9509 A1, 2006 ;
Location in patent: Page/Page column 10 ;
US 20060009509 A1