Add time:09/03/2019         Source:sciencedirect.com

The taxane diterpneoid 2-deacetoxytaxinine J (2-DAT-J) 1 has been isolated from the bark of Himalayan yew, Taxus baccata L. spp. wallichiana in a reasonably good yield (0.1%) and its anticancer activity against breast cancer cell lines (MCF-7 and MDA-MB-231) and normal human kidney epithelial cell line (HEK-293) has been studied. 2-DAT-J (1) showed significant in vitro activity against breast cancer cell line at a concentration of 20 μM and 10 μM in MCF-7 and MDA-MB-231 respectively. Few novel taxoids were derived (7, 8 and 10–13) from the naturally occurring 2-DAT-J (1) and screened for their anticancer activity. The structure–activity relationship studies indicated that the cinnamoyl group on C-5 and acetyl group on C-10 are essential for the anticancer activity. 2-DAT-J (1) was also tested for its in vivo activity on DMBA-induced mammary tumors in virgin female Sprague Dawley rats at a dose of 10 mg/kg body weight orally for 30 days and showed significant regression in mammary tumors as compared to vehicle treated group (p < 0.05).

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