1. Department of Biological Chemistry; Korea University of Science and Technology; Daejeon 305-333 Republic of Korea
2. Chemical Kinomics Research Center; Korea Institute of Science and Technology; Seoul 136-791 Republic of Korea
3. Department of Chemistry; Yonsei University; Seoul 120-749 Republic of Korea
4. Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy; Mansoura University; Mansoura 35516 Egypt