Introduction 1
CHAPTER Ⅰ The Study on the Chemical Constituent of the Fruits of Juglans Mandshurica 13
1.1 Extraction and Isolation 18
1.2 Structure Elucidation 20
1.3 Bioassy 47
CHAPTER Ⅱ The Study on the Chemical Constituent of Tinospora sinensis 51
2.1 Extraction and Isolation 55
2.2 Structare elucidation 57
CHAPTER Ⅲ The Study on the Chemical Constituent of Leaves of Mallotus furetianus 67
3.1 Extraction and Isolation 71
3.2 Structure elucidation 73
CHAPTER Ⅳ The Study on the Chemical Constituent of the Seeds of Cucurbita moschata 85
4.1 Extraction and Isolation 89
4.2 Structure Elucidations 90
Conclusion 105
Experimental Section 110
References 141