Aiming to develop selective anticancer drugs, we designed and synthesized three disulfides bearing a folic acid moiety as candidate folate receptor (FR)-targeted prodrugs of thiolate histone deacetylase inhibitors. Among them, compound 1 displayed growth-inhibitory activity toward folate receptor-positive MCF-7 breast cancer cells. The activity of I was significantly reduced by free folic acid, suggesting that cellular uptake of I is mediated by FR. (c) 2007 Elsevier Ltd. All rights reserved.
RhCl3-catalyzed disulfide exchange reaction using water solvent in homogeneous and heterogeneous systems
作者:Mieko Arisawa、Atsushi Suwa、Masahiko Yamaguchi
DOI:10.1016/j.jorganchem.2005.11.049
日期:2006.3
RhCl3 catalyzed the alkylthio exchange reaction of hydrophilic disulfides in water under homogeneous conditions, and equilibrium was attained in several hours. The reaction was applied to the exchange Of unprotected glutathione disulfide. The reaction of dimethyl disulfide and hydrophilic distilfides under heterogeneous conditions also proceeded effectively. The mechanism turned out to be dependent on the water solubility of the substrates: The reaction of bis(3-hydroxypropyl) disulfide took place in the dimethyl disulfide phase, whereas the reaction of bis(6-aminohexyl) disulfide dihydrochloride proceeded in the water phase. (c) 2005 Elsevier B.V. All rights reserved.