Total synthesis of the ammosamides.

Total synthesis of the ammosamides.
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DOI:
10.1021/ja9106572
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发表时间:
2010-03-03
影响因子:
15
通讯作者:
Fenical W
Fenical W
中科院分区:
化学1区
文献类型:
--
作者:
Hughes CC;Fenical W

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氨基酰胺A-C是从海洋链霉菌CNR-698中分离得到的氯化吡咯[4,3,2-de]喹啉代谢物。以4-氯绿素为原料,经17 ~ 19步合成了具有密集杂原子阵列的天然产物。在合适的时间和合适的氧化态引入5个氮原子是全合成成功的关键。与合成去氯氨酰胺B相比,天然氨酰胺B不易发生氧化降解。
The ammosamides A-C are chlorinated pyrrolo[4,3,2-de]quinoline metabolites isolated from the marine-derived Streptomyces strain CNR-698. The natural products, which possess a dense array of heteroatoms, were synthesized in 17–19 steps from 4-chloroisatin. That the five nitrogen atoms were introduced at the appropriate time and in a suitable oxidation state was key to the success of the total synthesis. Compared to synthetic deschloro ammosamide B, natural ammosamide B is much less susceptible to oxidative degradation.
新型墨西哥菌的海洋放线菌的多烯 - 多聚酚多醇盐。
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