Total Synthesis of (-)-Lycopladine D

来源 :The 24th International Society of Heterocyclic Chemistry Con | 被引量 : 0次 | 上传用户:mzhou2009
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Lycopladine D was isolated from Lycopodium complanatum by Kobayashi in 2006.[1] The total synthesis was accomplished in 15 steps with 7.2% overall yield, which featured a stereoselective birch reduction, an intramolecular mitsunobu reaction, an allylic oxidation and a biomimetic N,O-ketal bridged lactone formation.
其他文献
A general and efficient method for assembling pharmaceutically important substituted 3-aminoindazoles via CuBr-catalyzed reaction of 2-halobenzonitriles with hydrazine carboxylic esters or N-arylbenzo
会议
The first asymmetric total synthesis of natural indole alkaloid (+)-decursivine has been successfully accomplished in 10 steps and a 16.7% overall yield starting from the D-tryptophan derivative.The k
会议
Reliable synthetic routes accessing to both imidazole (1) and imidazoline (2) derivatives containing carbohydrate unit have been developed.Based on 1 and 2 as key intermediates, a series of NHCs (N-he
会议
CuBr-catalyzed reaction of 2-halobenzonitriles with protected hydrazines proceeded smoothly to afford substituted 3-aminoindazoles.[1] A wide range of 3-aminoindazoles with substituents at both the 1-
会议
We have previously used flash vacuum pyrolysis (FVP) of suitably designed stabilised phosphonium ylides to access a range of fused-ring heterocycles via cascade reactions.[1-4]This has now been extend
会议
Bis(trifluoromethyl)-1,2-dithiete 1 is a valuable precursor for preparation of metal complexes with useful properties.However the only published route for its preparation involves reaction of hexafluo
会议
Two novel copper-mediated annulations of 2-(2-halophenyl)-1H-indoles with(aryl)methanamines or 2-halophenols have been accomplished.These reactions provide two efficient and regioselective methods for
会议
With the cooperation of Crams phenonium ion, an easy one-pot cascade reaction catalyzed by a chiral secondary amine which can afford a series of quinoline derivatives has been developed and the corres
会议
In 2005, Yue et al.identified four structurally novel lignans Sacidumlignans A-D from Sarcostemma acidum (Roxb.), a plant used in Chinese folk medicine to treat chronic cough and postnatal hypogalacti
会议
We here disclosed a facile method to realize the dihydroxylation of alkenes[1] with the assistance of amide The proposed 5-Exo-Trig cyclization was verified by alternative synthesis of 3-subsituted-5-
会议