Synthesis and interactions of 7-deoxy-, 10-deacetoxy, and 10-deacetoxy-7-deoxypaclitaxel with NCI/ADR-RES cancer cells and bovine brain microvessel endothelial cells
作者:Haibo Ge、Veena Vasandani、Jacquelyn K. Huff、Kenneth L. Audus、Richard H. Himes、Anna Seelig、Gunda I. Georg
DOI:10.1016/j.bmcl.2005.09.043
日期:2006.1
7-Deoxypaclitaxel, 10-deacetoxypaclitaxel and 10-deacetoxy-7-deoxypaclitaxel were prepared and evaluated for their ability to promote assembly of tubulin into microtubules, their cytotoxicity against NCI/ADR-RES cells and for their interactions with P-glycoprotein in bovine brain microvessel endothelial cells. The three compounds were essentially equivalent to paclitaxel in cytotoxicity against NCI/ADR-RES cells. They also appeared to interact with P-glycoprotein in the endothelial cells with the two 10-deacetoxy compounds having less interaction than paclitaxel and 7-deoxypaclitaxel. (c) 2005 Elsevier Ltd. All rights reserved.
Synthesis of 7-deoxy- and 7,10-dideoxytaxol via radical intermediates
7-Deoxytaxol and 7,10-dideoxytaxol were prepared from baccatin III, employing the Barton deoxygenation procedure and the Holton acylation method at C-13.