Short communicationAllylic isothiouronium salts: The discovery of a novel class of thiourea analogues with antitumor activity

Add time:09/08/2019    Source:sciencedirect.com

A series of 28 aryl- and alkyl-substituted isothiouronium salts were readily synthesized in high yields through the reaction of allylic bromides with thiourea, N-monosubstituted thioureas or thiosemicarbazide. The S-allylic isothiouronium salts substituted with aliphatic groups were found to be the most effective against leukemia cells. These compounds combine high antitumor activity and low toxicity toward non-tumoral cells, with selectivity index higher than 20 in some cases. Furthermore, the selected isothiouronium salts induced G2/M cell cycle arrest and cell death, possibly by apoptosis. Therefore, these compounds can be considered as a promising class of antitumor agents due to the potent cytostatic activity associated with high selectivity.

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