Meso-zeaxanthin was investigated for antimutagenic and anticarcinogenic activity, using the Ames test (Salmonella typhimurium strains TA 98, TA 100, TA 102 and TA 1535) with direct acting mutagens like sodium azide (NaN3) (5 μg/ plate), nitro-o-phenylendiamin (NPD) (20 μg/ plate), N-methyl-
Diverse amino analogs of Ludartin, a cytotoxic guaianolide and a position isomer of an anticancer drug, Arglabin were prepared through Michael type addition at its highly active α-methylene-γ-lactone motif. The semisynthetic derivatives were subjected to sulphorhodamine B cytotoxicity assay against
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