A concise synthesis of 5-demethyl-HKI 0231A and 5-demethyl-HKI 0231B
摘要:
The pentacyclic skeleton of HKI 0231A and HKI 0231B was synthesized by a novel radical cyclization/oxidation followed by DDQ oxidation to introduce the methoxyl groups the HKI 0231B series. (c) 2006 Elsevier Ltd. All rights reserved.
A concise synthesis of 5-demethyl-HKI 0231A and 5-demethyl-HKI 0231B
摘要:
The pentacyclic skeleton of HKI 0231A and HKI 0231B was synthesized by a novel radical cyclization/oxidation followed by DDQ oxidation to introduce the methoxyl groups the HKI 0231B series. (c) 2006 Elsevier Ltd. All rights reserved.
Discovery of a Phenylamine-Incorporated Angucyclinone from Marine <i>Streptomyces</i> sp. PKU-MA00218 and Generation of Derivatives with Phenylamine Analogues
A new phenylamine-incorporated angucyclinone (1) featuring a unique 1-phenylbenzo[cd]indol-3(1H)-one moiety was discovered from marine Streptomyces sp. PKU-MA00218. A series of experimental investigations identified that 1 was produced from the nonenzymatic conversion of a C-ring-cleaved angucyclinone (2) with phenylamine. Utilizing the nonenzymatic conversion, 18 phenylamine-incorporated angucyclinone
从海洋链霉菌(Streptomyces sp )中发现了一种新的苯胺结合的环环酮(1),具有一个独特的1-苯基苯并[ cd ]吲哚3(1 H)-一个部分。PKU-MA00218。一系列实验研究确定1是由C环裂解的gu环素(2)与苯胺的非酶转化所产生的。利用非酶转化,在温和条件下有效地生成了18个带有卤素,甲基,甲氧基和羧基取代基的结合有苯胺的an环素酮衍生物。这些结果突出了非酶反应在扩大环环素的结构多样性中的令人印象深刻的作用。
A concise synthesis of 5-demethyl-HKI 0231A and 5-demethyl-HKI 0231B
作者:George A. Kraus、Tao Wu
DOI:10.1016/j.tetlet.2006.08.065
日期:2006.10
The pentacyclic skeleton of HKI 0231A and HKI 0231B was synthesized by a novel radical cyclization/oxidation followed by DDQ oxidation to introduce the methoxyl groups the HKI 0231B series. (c) 2006 Elsevier Ltd. All rights reserved.