Design, Synthesis and Pharmacological Evaluation of Noscapine Glycoconjugates

The present work is directed to design a series of molecules which are hybrids of two non-toxic biocompatible chemical architectures, noscapine and carbohydrates. Fourteen, 7-O-noscapine analogues have been synthesized out of which one of the analogue is 7-O-propargylated derivative and others are in its glycoconjugate form with triazole bridging achieved via Click reaction, where dinuclear copper(I) thiodiacetate complex [(PPh3)(2)Cu(mu-tda)Cu(PPh3)(2)]center dot 6H(2)O has been emerged as an excellent catalyst for the noscapine-glyco Click-coupling. All the developed noscapine glycoconjugates have been investigated for anticancer activity using HeLa cell line and anti-leishmanial activity against Leishmania donovani. Result indicates that five of the developed noscapine glycoconjugates (5a, 5b, 5c, 5e and 5l) showed significant anti-proliferative activity. On the other hand, four of them (5b, 5c, 5e, and 5l) showed significant anti-leishmanial activity.