Abstract
Andrographolide, the major diterpenoidal constituent of Andrographis paniculata (Acanthaceae) and its derivatives have been reported to possess plethora of biological properties including potent anti-cancer activity. In this work, synthesis and in-vitro anti-cancer evaluation of new C-12-substituted aryl amino 14-deoxy-andrographolide derivatives (III a–f) are reported. The substitutions include various sulfonamide moieties –SO2-NH-R1. The new derivatives (III a–e) exhibited improved cytotoxicity (GI50, TGI and LC50) compared to andrographolide (I) and the corresponding 3,14,19-O-triacetyl andrographolide (II) when evaluated against 60 NCI cell line panel. Compounds III c and III e are found to be non-toxic to normal human dermal fibroblasts (NHDF) cells compared to reference drug THZ-1.
Published Version
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