1. Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering Division of Chemistry and Chemical Engineering 1200 E. California Blvd, MC 101-20 Pasadena CA 91125 USA
2. Laboratory of Medicinal Chemistry Chulabhorn Research Institute 54 Kamphaeng Phet 6 Road Bangkok 10210 Thailand
3. Discovery Research Laboratories Nippon Chemiphar Co., Ltd. 1–22 Hikokawado Misato Saitama 341-005 Japan