... 2n 2 m 烃(CnHm) :Ω= 2 卤代烃(CnHmXZ) :Ω= 2 2n 2 m 2n 2 m z 含氧衍生物(CnHmOZ) :Ω= 2 含氮衍生物(CnHmNZ) :Ω= 2 公式繁多,现简化如下: 将有机物的化学式转化为 CxHyOaNHb 则 Ω=x1-y/2 此公式使用范围极广,可囊括几乎所有有机物...
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Given the in some cases well-investigated incorporation of nitrogen atoms into baicalein, the presumably biomimetic synthesis of nitrogen-containing derivatives from the secondary amines starting materials, bergenin, may be rewarding. As a result, 18 derivatives were prepared.
经过Mannich反应,共得到了18个岩白菜素含氮衍生物。
参考来源 - 三种天然化合物的结构改造·2,447,543篇论文数据,部分数据来源于NoteExpress
含氮稠环衍生物,含该衍生物的药物组合物,和其作为药物的用途。
Nitrogenous fused-ring derivatives, medicinal compositions containing the derivatives, and use thereof as drugs.
摘要对一种新型的杀菌剂-含硅的三氮唑衍生物的合成进行了改进,并给出了一条新的合成路线。
A new process for preparing the new fungicide - silicon - containing triazole derivative is described.
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