[1] Syracuse Univ, Dept Chem, Syracuse, NY 13244 USA
[2] PharmaResources Shanghai Co Ltd, Shanghai, Peoples R China
[3] SUNY Upstate Med Univ, Dept Biochem & Mol Biol, Syracuse, NY 13210 USA
[4] Harvard Univ, Dept Chem & Chem Biol, Cambridge, MD 02138 USA