Twenty two 3-Ο-alkyl derivatives of D-glucose and D-allose, four 3-Ο-alkenyl derivatives of D-glucose having an end methylene group, and four 3-Ο-ω-hydroxyalkyl- or -methoxyalkyl derivatives of D-glucose were synthesized. Their cytotoxicity in vitro against the cultured leukemia L-5178Y cell line, antimicrobial activity and plant growth-inhibitory effect were determined.
A series of 3-O-substituted glucose derivatives was prepared with alkyl, alkenyl, aromatic and ferrocenic substituents; to vary lipophilicity and hydrogen bonding ethylenedioxy and perfluorinated fragments were also introduced. Apparent affinities for the Plasmodium falciparum hexose transporter (PfHT) were determined after heterologous expression in Xenopus oocytes, with highest affinities for compounds with C8-C13 lipophilic chains. As no derivatives show significant affinity for the mammalian glucose transporter (GLUT1), these structure/affinity assays contribute to design of potent PfHT inhibitors and eventual development of antimalarials. (C) 2005 Elsevier Ltd. All rights reserved.