Smith, Richard F.; Dennis, Lisa A.; Ryan, William J.; Rodriguez, George; Brophy, Keith A.
Journal of Heterocyclic Chemistry, 1992 , vol. 29, # 1 p. 181 - 183
1: acetophenone; oxalic acid diethyl ester With sodium hydride in ethanol; mineral oil T=20°C; 2: methylhydrazine With hydrogenchloride in ethanol; water
参考文献
PHARMACIA and UPJOHN COMPANY
Patent: WO2004/18428 A1, 2004 ;
Location in patent: Page 92 ;