发明名称 |
PIPERAZINE SALTS OF HYDROXYCINNAMIC ACIDS AND HYDROXYSTILBENES |
摘要 |
<p>The present invention relates to a method for stabilising the trans form of hydroxy-stilbenes or of hydroxy-cinnamic acids. Particularly, the present invention relates to compounds of general formula (I) with the trans configuration: (I) Wherein: R is selected from COOH and a group of formula (II): R1 is H, OH or R2, and R2 is independently selected from OH, linear or branched O- (C1-C6) alkyl optionally substituted with a group selected from OH or O- (C1-C6) alkyl; R3 is independently selected from H and linear or branched (C1-C6) alkyl optionally substituted with a group selected from OH or O- (C1-C6) alkyl. A method for the preparation thereof is also described.</p> |
申请公布号 |
WO2005000780(A1) |
申请公布日期 |
2005.01.06 |
申请号 |
WO2004EP06726 |
申请日期 |
2004.06.22 |
申请人 |
BERTELLI, ALDO;UNIVERSITA' DEGLI STUDI DI MILANO;STRADI, RICCARDO |
发明人 |
STRADI, RICCARDO;BERTELLI, ALDO |
分类号 |
C07C39/21;C07C51/41;C07C59/52;C07C59/68;(IPC1-7):C07C51/41 |
主分类号 |
C07C39/21 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|