1. Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy; Yanbian University; Yanji 133002 Jilin Province China
2. Department of Pharmacy, Affiliated Western Hospital, Yanbian University, Department of Endocrinology; Affiliated Hospital of Yanbian University; Yanji 133000 Jilin, Province China
3. Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences; University of Shizuoka; 52-1 Yada Suruga-ku Shizuoka 422-8526 Japan