کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1257306 | 971556 | 2015 | 5 صفحه PDF | دانلود رایگان |
Chlorospermines A and B are biologically interesting acridone natural products and recently isolated from Glycosmis chlorosperma. We report here a convergent approach to construct the tetracyclic core of the natural products. The two fragments are assembled together through Sonogashira coupling, and a cis-triene intermediate was prepared by using hydrosilylation/desilylation. A 6π-electrocyclization/aromatization sequence served as the key step of the synthesis, which formed the tetrasubstituted arene motif in one pot.
The tetracyclic core of chlorospermines A and B, two acridone alkaloids isolated from Glycosmis chlorosperma, have been constructed through a 6π electrocyclization/aromatization sequence.Figure optionsDownload as PowerPoint slide
Journal: Chinese Chemical Letters - Volume 26, Issue 3, March 2015, Pages 272–276