METHODS: The target compound was prepared by the bromination and amination reaction.方法: 用溴代及胺化反应合成了四甲基吡嗪衍生物.The effects of triacetoneamine concentration on hydrogenation and amination were discussed.论述了三丙酮胺纯度对加氢和还原胺化反应的影...
The most effective new botanicals are extracts from cola nut and marine algae.这种极其有效的新型植物制剂是从可乐果和海藻中提炼出来的。Key compounds under review included vitamins, antioxidants , alpha - hydroxyl acids, moisturizers, pentapeptides a...