Total synthesis of (+/-)-calcaridine A and (+/-)-epi-calcaridine A.
Total synthesis of (+/-)-calcaridine A and (+/-)-epi-calcaridine A.
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DOI:
10.1021/ol802018r
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发表时间:
2008-11-06
期刊:
影响因子:
5.2
通讯作者:
Lovely, Carl J.
中科院分区:
文献类型:
--
作者:
Koswatta, Panduka B.;Sivappa, Rasapalli;Dias, H. V. Rasika;Lovely, Carl J.
The first total synthesis of the Leucetta alkaloid calcaridine A is described based on a biosynthetic postulate. Application of an oxidative rearrangement of a 4,5-disubstituted imidazole leads to the formation of both calcaridine A and epi-calcaridine A. An X-ray crystal structure determination on the latter has allowed the assignment of the relative configuration of the epimeric natural product and calcaridine A by extrapolation.
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