Synthesis and anti-leishmanial activity of heterocyclic betulin derivatives
作者:Sami Alakurtti、Tuomo Heiska、Alexandros Kiriazis、Nina Sacerdoti-Sierra、Charles L. Jaffe、Jari Yli-Kauhaluoma
DOI:10.1016/j.bmc.2010.01.003
日期:2010.2
Betulin, a naturally occurring abundant triterpene is converted in four steps to 3,28-di-O-acetyllupa-12,18-diene. When various 4-substituted urazoles were oxidized to the corresponding urazines with iodobenzene diacetate in the presence of 3,28-di-O-acetyllupa-12,18-diene, new heterocyclic betulin derivatives were produced. These betulin derivatives were examined in a microplate assay at 50 μM for
BETULIN DERIVED COMPOUNDS USEFUL AS ANTIPROTOZOAL AGENTS
申请人:Yli-Kauhaluoma Jari
公开号:US20100190795A1
公开(公告)日:2010-07-29
The invention relates to betulin derivatives, and to the use thereof as agents against protozoa of the genus
Leishmania
and against leishmaniasis in applications of pharmaceutical industry.
该发明涉及到白桦酸衍生物,并将其用作制药工业中针对副单胞菌属Leishmania及利什曼病的药剂。
COMPOSITIONS COMPRISING BETULONIC ACID
申请人:Yli-Kauhaluoma Jari
公开号:US20100196290A1
公开(公告)日:2010-08-05
The invention relates to compositions of cosmetic and pharmaceutical industries comprising betulonic acid for humans and animals, and further, to the use of betulonic acid in compositions of cosmetic and pharmaceutical industries. The invention is also directed to compositions containing, besides betulonic acid, optionally other compounds derived from betulin.
BETULIN DERIVED COMPOUNDS USEFUL AS ANTIBACTERIAL AGENTS
申请人:Yli-Kauhaluoma Jari
公开号:US20100273801A1
公开(公告)日:2010-10-28
The invention relates to compouns derived from betulin, and to the use thereof as antibacterial agents in pharmaceutical and cosmetic applications.
本发明涉及从白桦酸衍生的化合物,并将其用作医药和化妆品应用中的抗菌剂。
New Lupane Derived Compounds with Pro-Apoptotic Activity in Cancer Cells: Synthesis and Structure−Activity Relationships
作者:Jan Šarek、Jiří Klinot、Petr Džubák、Eva Klinotová、Věra Nosková、Václav Křeček、Gabriela Kořínková、Jean Oliver Thomson、Anna Janošt'áková、Shudong Wang、Simon Parsons、Peter M. Fischer、Nikolai Z. Zhelev、Marián Hajdúch
DOI:10.1021/jm020854p
日期:2003.12.1
Cellular screening of various synthetic triterpenoid compounds formally derived from lupane has identified a number of analogues as potential anticancer drug candidates. Here we describe the synthesis and structure-activity relationships of betulin and betulinic acid derivatives containing an E-ring modified with different oxygen functions. Thus compounds containing the lup-18-en-21-one, lup-18-ene-21