四硫化二磷(P 4 S 10)中的吡啶已长期用作硫代剂。现在已经以结晶形式分离出对水分敏感的试剂,并且已经通过X射线晶体学确定了详细的结构。已经研究了这种可储存试剂的去硫能力,并将其转移到诸如乙腈之类的溶剂中,在该溶剂中已证明其在合成上是有用的并且具有非凡的选择性。它的性能已经与所谓的Lawesson试剂(LR)进行了比较。特别有趣的是在相对较高的温度(约165°C)下以二甲基砜为溶剂进行硫磺化的结果。在这些条件下,例如,a啶酮和3-乙酰吲哚可以迅速转化为相应的亚硫代衍生物。甘氨酰甘氨酸类似地得到哌嗪去甲酮。在这些温度下 LR由于快速分解而效率低下。硫代产物通常更清洁并且更容易获得,因为在结晶试剂中,常规试剂P中始终存在杂质吡啶或LR中的4 S 10已被除去。
A process for transforming a group >C=O (I) in a compound into a group >C=S (II) or into a tautomeric form of group (II) in a reaction giving a thionated reaction product, by use of crystalline P2S5·2 C5H5N as a thionating agent. A thionating agent which is crystalline P2S5·2 C5H5N.
将化合物中的一个羰基 >C=O (I) 转化为一个硫代基 >C=S (II) 或者转化为羰基 (II) 的互变异构体,从而在反应中生成一种硫代反应产物的过程,使用晶体 P2S5·2 C5H5N 作为硫代试剂。一种晶体 P2S5·2 C5H5N 的硫代试剂。
[EN] LANTHANIDE METAL COMPLEXES USEFUL IN TREATING CANCER<br/>[FR] COMPLEXES MÉTALLIQUES DE LANTHANIDES UTILES DANS LE TRAITEMENT D'UN CANCER
申请人:AGENCY SCIENCE TECH & RES
公开号:WO2010114493A1
公开(公告)日:2010-10-07
The present invention relates to a compound of formula (I). Provided is also a method of killing a cell that comprises administering the compound of formula (I). Provided is also a method of treating cancer or diabetes in a mammal that comprises administering the compound of formula I and respective pharmaceutical compositions thereof.
A process for transforming a group >C═O (I) in a compound into a group >C═S (II) or into a tautomeric form of group (II) in a reaction giving a thionated reaction product, by use of crystalline P
2
S
5
.2 C
5
H
5
N as a thionating agent. A thionating agent which is crystalline P
2
S
5
.2 C
5
H
5
N.