Methyl 9-hydroxyl-9-xanthene carboxyate which is an important intermediate of xanthene anticholiergic drugs was easily synthesized from methyl 9-xanthene carboxyate.
羟基-9-呫吨羧酸甲酯是合成呫吨类抗胆碱能药物的一种重要的中间体。
The first part: synthesis and in vitro activity of 3-keto-9-o-substituted oxime derivatives of 6-o-methyl erythromycin a.
第一部分：3 -酮基- 6 - O -甲基红霉素- 9 -取代肟基衍生物的合成与体外抗菌活性。
Preferably, methyl ricinoleate is converted by cross-metathesis or homo-metathesis into the homo-allylic mono-alcohol 1-decene-4-ol or the homo-allylic polyol 9-octadecene-7,12-diol, respectively.
优选地，蓖麻酸甲酯通过交叉复分解或同质复分解分别转化成高 烯丙一元醇1-癸烯-4-醇或高烯丙多元醇9-十八烯-7，12-二醇。
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