A novel one-step microbial transformation of betulin to betulinic acid catalyzed by Cunninghamella blakesleeana through Biotage Isolera耐士科技
2015-02-13 10:02
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资料摘要:
Betulinic acid and its derivatives are potential bioactive compounds present in nature. This study investigated the biotransformation of betulin to betulinic acid by Cunninghamella blakesleeana cells. LC–MS analysis demonstrated that betulin could be transformed into at least five products from cultured C. blakesleeana cells, among which betulinic acid was the most important. The presented method provides an attractive alternative approach to chemical synthesis, because is less time-consuming and more environmentally friendly. C. blakesleeana can transform betulin into potent derivatives with high pharmacological
activities.
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We herein report several highly active catalyst systems with thiadiazolidine 1-oxides as ligands for palladium in the MizorokieHeck reaction. Excellent yields of stilbenes derived from aryl iodides and bromides have been achieved using as little as 0.00002 mol % catalyst. The ligand/palladiumsystem can be stored as a stock solution open to air at room temperature with no observable loss of activity for a period of several months.
耐士科技作为Biotage中国区总代理,以优质的服务为您提供Biotage全系产品以及相关的技术服务。1、开机前确认自动收集机械手臂下无障碍物,试管高度低于机械手臂收集针
2、运行前确认所用流动相充足,废液瓶剩余空间充足
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1.开机,按屏幕左下方黑色电源键
2.进入开机界面后,点击Chemistry进入操作界面
3.在”Method”页面中设定好相关参数
耐士科技作为Biotage中国区总代理,以优质的服务为您提供Biotage全系产品以及相关的技术服务。
操作步骤:
1.开机,按屏幕左下方黑色电源键
2.进入开机界面后,点击
Organic Synthesis
进入编辑界面