Himanshu Atheaya

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Advances in the sophisticated instruments for the isolation and characterization of marine natural products, and development in the biological assay systems, have resulted in the discovery of various compounds of biomedical application. Marine natural products have been a source of new leads for the treatment of many deadly diseases such as cancer, acquired(More)
A series of tetraoxanes, tetraoxane-amine and tetraoxane-amide conjugates have been synthesized and screened for in vitro antimalarial activity against chloroquine-sensitive and chloroquine-resistant strains of Plasmodium falciparum. Most of the conjugates showed slightly better antimalarial activity than the parent tetraoxanes. Three of the conjugate(More)
A novel iodine-catalyzed one-pot synthesis of symmetrically and asymmetrically substituted 3,6-diphenyl-[1,2,4,5]tetraoxanes is described. The synthetic protocol is general with substituted benzaldehydes and proceeds well under acidic conditions. Total 17 tetraoxanes have been prepared during this study and some of these compounds exhibit promising(More)
Symmetrically and asymmetrically substituted 1,2,4,5-tetraoxanes were synthesized by the oxidative system H(2)O(2)/TFE in presence of MeReO(3) as a catalyst. All of the synthesized compounds were characterized spectroscopically, and evaluated for cytotoxicity, and antimalarial activity. Several of these tetraoxanes exhibited in vitro antimalarial activity(More)
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