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yang09529

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fx4511822

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Oleanolic acid as the folk common medicine ,is the earliest in qing classification herbs, oleanolic acid as the main active ingredients of traditional Chinese medicine (TCM) rock cabbage and  the monomeric compound enriching in nature is a kind of dihydrogen coumarin compounds, which is also exists in other plants except the rock of cabbage.This paper would further study the structure-activity relationship for Oleanolic acid on the basis of previous studies,  modify it¡¯s structure reasonably  and synthesy a series of derivatives based on keeping basic skeleton structure. Besides,we found that the synthetic derivatives of 1, 2, 3 have good antitumor activity through animal experiments to test its biological activity.  ¹©²Î¿¼
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yang09529: ½ð±Ò+30, ¡ï¡ï¡ïºÜÓаïÖú, лл 2014-07-27 09:15:31
Oleanolic acid is a Chinese folk medicine which is first recorded in the Classification of herbs" in Qing Dynasty. It is the main active ingredient of Chinese medicine Bergenia and belongs to dihydroisoxazole coumarin compounds. In addition to Bergenia, oleanolic acid also presents as a available natural compound in other plants. In this paper, we studied more structure - activity relationship (QSAR) of oleanolic acid based on previous researches. After keeping the basic skeleton and reasonably modifying structure of natural active compounds, we got a series of derivatives. In animal experiments testing the biological activity, those derivatives marked with 1, 2, and 3 have more anticancer activity. ¸öÈË×¾¼û£¬½ö¹©²Î¿¼¡£×£Ë³Àû£¡
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