发明名称 |
(-)-EPIGALLOCATECHIN GALLATE DERIVATIVES FOR INHIBITING PROTEASOME |
摘要 |
<p>(-)-EGCG, the most abundant catechin, was found to be chemopreventive and anticancer agent. However, (-)-EGCG has at least one limitation: it gives poor bioavailability. This invention provides compounds of generally formulae below, wherein R<SUB>11</SUB>, R<SUB>12</SUB>, R<SUB>13</SUB>, R<SUB>21</SUB>, R<SUB>22</SUB>, R<SUB>2</SUB>, R<SUB>3</SUB>, and R<SUB>4</SUB> are each independently selected from the group consisting of -H, and C<SUB>1</SUB> to C<SUB>10</SUB> acyloxyl group; and R<SUB>5</SUB> is selected from the group consisting of -H, C<SUB>1</SUB> -C<SUB>10</SUB> -alkyl, C<SUB>2</SUB> -C<SUB>10</SUB> -alkenyl, C<SUB>2</SUB> -C<SUB>10</SUB> -alkynyl, C<SUB>3</SUB> -C<SUB>7</SUB> -cycloalkyl, phenyl, benzyl and C<SUB>3</SUB> -C<SUB>7</SUB> -cycloalkenyl, whereas each of the last mentioned 7 groups can be substituted with any combination of one to six halogen atoms; at least one of R<SUB>11</SUB>, R<SUB>12</SUB>, R<SUB>13</SUB>, R<SUB>21</SUB>, R<SUB>22</SUB>, R<SUB>2</SUB>, R<SUB>3</SUB> and R<SUB>4</SUB> is -H, which were found to be more potent than their non-protected counterparts, which can be used as proteasome inhibitors to reduce tumor cell growth.</p> |
申请公布号 |
WO2006017981(A9) |
申请公布日期 |
2006.05.11 |
申请号 |
WO2005CN01262 |
申请日期 |
2005.08.15 |
申请人 |
THE HONG KONG POLYTECHNIC UNIVERSITY;WAYNE STATE UNIVERSITY;UNIVERSITY OF SOUTH FLORIDA;MCGILL UNIVERSITY;CHAN, TAK-HANG;LAM, WAI-HAR;CHOW, LARRY, MING-CHEUNG;DOU, QING PING;KUHN, DEBORAH, JOYCE;KAZI, ASLAMUZZAMAN;WAN, SHENG BIAO;LANDIS-PIWOWAR, KRISTIN, R. |
发明人 |
CHAN, TAK-HANG;LAM, WAI-HAR;CHOW, LARRY, MING-CHEUNG;DOU, QING PING;KUHN, DEBORAH, JOYCE;KAZI, ASLAMUZZAMAN;WAN, SHENG BIAO;LANDIS-PIWOWAR, KRISTIN, R. |
分类号 |
(IPC1-7):C07D311/62;A61P35/00 |
主分类号 |
(IPC1-7):C07D311/62 |
代理机构 |
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代理人 |
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