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An Effective and Convenient Esterification of Cephalosporin Derivatives by Using Quaternary Ammonium Salts as Catalysts.
H. W. LEE, T. W. KANG, E.-N
ChemInform
Volume 30, Issue 6, page no, February 9, 1999
Код: Выделить всё
http://dx.doi.org/10.1002/chin.199906230