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ÈçÌ⣬¸÷λ´óϺ°ï°ïæ°É¡¢¡¢![]() Ó¢ÎÄÃüÃûÍêÈ«²»»á¡£¡£ ![]() methyl 2-carboxy-3,12-dioxooleana-1,9(11)-dien-28-oate (29). 3-oxooleana-1,12-dien-28-oic acid. Methyl 3,12-Dioxooleana-1,9(11)-dien-28-oate (9). 3,12-Dioxooleana-1,9(11)-dien-28-oic Acid (10). Methyl 3,11-Dioxoursa-1,12-dien-28-oate (13). 3-Oxooleana-1,9(11)-dien-28-oic Acid (18). 3,11-Dioxooleana-1,12-dien-28-yl Acetate (22). 9,11-Epoxy-3-oxoolean-1-en-28-oic Acid (21). 3-Oxooleana-1,11,13(18)-trien-28-oic Acid (20). 28-Hydroxyoleana-1,12-diene-3,11-dione (23). Methyl 2-Cyano-3,12-dioxooleana-1,9(11)-dien-28-oate. Methyl 2-Methoxycarbonyl-3,12-dioxooleana-1,9(11)-dien-28-oate (27). 2-Carboxy-3,12-dioxooleana-1,9(11)-dien-28-oic Acid(30). Methyl 2-Aminocarbonyl-3,12-dioxooleana-1,9(11)-dien-28-oate (36). Methyl 2-Formyl-3,12-dioxooleana-1,9(11)-dien-28-oate(37). Methyl 3¦Â-Hydroxy-12-oxooleanan-28-oate (50). Methyl 11-Oxoisoxazolo[4,5-b]olean-12-en-28-oate (66). Methyl 11-Oxoisoxazolo[4,5-b]urs-12-en-28-oate (69). »¹ÓÐÕâ¾ä»°ÊÇÉñÂíÒâ˼¡£¡£ We have designed and synthesized 16 new olean- and urs-1-en-3-one triterpenoids with various modified rings C as potential antiinflammatory and cancer chemopreventive agents and evaluated their inhibitory activities against production of nitric oxide induced by interferon-¦Ã in mouse macrophages. |
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