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[期刊论文] 作者:Xin Yong Liu,Ren Zhang Yan,Nia, 来源:中国化学快报(英文版) 年份:2004
The new regioisomer 7-methyl-pyrazolo[4,5-e] [1,2,4]thiadiazine nucleus (5) was synthesized, and its novel mono-N2- or N4-substituted pyrazolo[4,5-e][1,2,4]thia...
[期刊论文] 作者:Xian Chao CHENG,Xin Yong LIU,W, 来源:中国化学快报 年份:2004
A series of novel ligustrazine derivatives were synthesized. These compounds have not been reported in literature, and their chemical structures were confirmed...
[期刊论文] 作者:Xin Yong Liu,Ren Zhang Yan,Nia, 来源:黑龙江科技学院学报 年份:2007
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
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