嘧啶肟草醚在水稻环境中残留行为研究已在河南郑州和云南昆明田间小区内进行。
Residue and behavior of pyribenzoxim in paddy environment were conducted in Zhengzhou of Hennan province and Kunming of Yunnan province.
以乙酰乙酸叔丁酯为原料，经过肟化、醚化、氯代酯解反应合成了头孢克肟开环侧链酸。
Cefixime open side chain acid was prepared by oximation, etherification, chlorination, ester decomposition using t-butyl acetoacetate as starting material.
以乙酰乙酸叔丁酯为原料，经过肟化、醚化、氯代酯解反应合成了头孢克肟开环侧链酸。
Cefixime open side chain acid was prepared by oximation, etherification, chlorination, ester decomposition using t-butyl acetoacetate as starting material.
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