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。
[EN] A THIONATION PROCESS AND A THIONATING AGENT<br/>[FR] PROCÉDÉ DE THIONATION ET AGENT DE THIONATION
申请人:VIRONOVA AB
公开号:WO2012104415A1
公开(公告)日:2012-08-09
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
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。
THIONATION PROCESS AND A THIONATING AGENT
申请人:Pettersson Birgitta
公开号:US20130102774A1
公开(公告)日:2013-04-25
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.
[EN] HETEROCYCLIC COMPOUNDS AS KINASE INHIBITORS<br/>[FR] COMPOSÉS HÉTÉROCYCLIQUES EN TANT QU'INHIBITEURS DE KINASE
申请人:NUVATION BIO INC
公开号:WO2022236256A1
公开(公告)日:2022-11-10
Heterocyclic compounds as CDK4 or CDK6 or other CDK inhibitors are provided. The compounds may find use as therapeutic agents for the treatment of diseases and may find particular use in oncology.