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Method for synthesizing 2-cyano-3,12-dioxoolean-1, 9(11)-dien-28-oic acid methyl ester and derivatives thereof
Method for synthesizing 2-cyano-3,12-dioxoolean-1, 9(11)-dien-28-oic acid methyl ester and derivatives thereof
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机译:合成2-氰基-3,12-二氧杂1,9(11)-二烯-28-油酸甲酯及其衍生物的方法
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摘要
The present invention is a method for preparing triterpenoids such as 2-cyano-3,12-dioxoolean-1,9-dien-28-methyl ester and derivatives thereof from oleanic acid, ursolic acid, betulinic acid, sumaresinolic acid or hederagenin.
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