一种取代异腈化合物的环保制备方法

    公开(公告)号:WO2022126947A1

    公开(公告)日:2022-06-23

    申请号:PCT/CN2021/087214

    申请日:2021-04-14

    IPC分类号: C07C291/10

    摘要: 本发明提供一种取代异腈化合物的环保制备方法,该方法以N-甲酰基-α-R 2取代基甘氨酸酯为起始原料,在脱水剂如三取代基二卤化膦、三取代基二卤化膦和酰卤试剂的组合或三取代基氧化膦和酰卤试剂的组合、有机胺作用下经脱水反应得到取代异腈化合物。所得取代异腈化合物是合成VB 6的重要中间体。本发明可采用连续流的方式进行,提高了生产效率减少了操作。本发明反应过程副产三取代氧化膦,可循环使用,降低成本;本发明不使用价格高且制备工艺废水量大的三氯氧磷和五氧化二磷作为脱水剂,也不需进行高温脱水反应,工艺、操作简便,工艺过程无含磷废水排放,绿色环保,成本低;原子经济性高,目标产物收率和纯度高,适合工业化应用。

    RHENIUM COMPLEXES AND METHODS OF USE FOR TREATING CANCER

    公开(公告)号:WO2020037166A1

    公开(公告)日:2020-02-20

    申请号:PCT/US2019/046732

    申请日:2019-08-16

    摘要: A composition comprising the following structure: (1) wherein Re represents a rhenium ion having a +1 charge; (I) represents an uncharged bidentate ligand containing at least one ring containing a ring nitrogen atom bound to the rhenium (Re), and the bidentate ligand containing another nitrogen atom, either in a ring or not in a ring, bound to the rhenium (Re); and L 1 , L 2 , L 3 , and L 4 are neutral ligands with at least one neutral ligand being an isonitrile ligand of the formula -CN-R, wherein R is an aliphatic or aromatic hydrocarbon group containing 1-20 carbon atoms; and X - represents a non-coordinating monovalent anion; wherein the bidentate ligand and R are optionally substituted by one or more groups selected from (i)-(xi) as further discussed above. Methods for treating a condition that benefits from ER stress induction, such as cancer, by administering the above rhenium complex are also disclosed.