METHODS Cilnidipine was synthesized from cinnamyl alcohol by esterification, feminization and condensation - cyclization.方法以肉桂醇为原料,经酯化 、 氨化和缩合 - 环合而得.Methods: using N - methylephedrine, via condensation with the correspo...
最近，总统一时兴起频频解雇旧部长，选任新部长。Lately, the president has been sacking and picking new ministers at whim.那和下一任老板的选任方式相当类似。That is a fair approximation of the way in which the next boss is being chosen.选任优质锯齿型开槽刀片,保证开槽光洁度.Top - qu...
在此条件下合成的产物中活性物含量可达40%.Under the optimum conditions, the content of active substance could reach 40 %.其固体物的质量分数为25%,活性物质量分数为18%.Its solid was 25 % and the activating agent was 18 %.对以氟化钠和一氟磷酸钠为基础的 抗 龋活性物配方的有效性给予了肯定.The ef...