Exceedingly Concise and Elegant Synthesis of (+)-Paniculatine, (−)-Magellanine, and (+)-Magellaninone
摘要:
Starting from inexpensive (+)-pulegone as the chiral building block, a highly convergent synthesis of the unusual diquinane-based structures of (+)-paniculatine (1), (-)-magellanine (2), and (+)-magellaninone (3), has been achieved. This approach is based upon a tandem acylationalkylation of ketoester 8 and palladium-catalyzed olefin insertion, oxidation, and hydrogenation for construction of the tetracyclic framework. This exceedingly concise strategy, requiring only 1214 steps, is the shortest to date.
Stereoselective Total Syntheses of Three <i>Lycopodium</i> Alkaloids, (−)-Magellanine, (+)-Magellaninone, and (+)-Paniculatine, Based on Two Pauson−Khand Reactions
作者:Takashi Kozaka、Naoki Miyakoshi、Chisato Mukai
DOI:10.1021/jo702136b
日期:2007.12.1
The totalsyntheses of (−)-magellanine, (+)-magellaninone, and (+)-paniculatine were completed from diethyl l-tartrate via the common intermediate in a stereoselective manner. The crucial steps in these syntheses involved two intramolecular Pauson−Khand reactions of enynes: the first Pauson−Khand reaction constructed the bicyclo[4.3.0] carbon framework, the corresponding A and B rings of these alkaloids
Unified Total Synthesis of Tetracyclic Diquinane <i>Lycopodium</i> Alkaloids (+)-Paniculatine, (−)-Magellanine, and (+)-Magellaninone
作者:Bing-Bing Huang、Kaiyu Lei、Lin-Rui Zhong、Xiaoliang Yang、Zhu-Jun Yao
DOI:10.1021/acs.joc.2c00871
日期:2022.7.1
total synthesis of three tetracyclic diquinane Lycopodium alkaloids (+)-paniculatine, (−)-magellanine, and (+)-magellaninone has been accomplished in 13–14 overall steps based on late-stage diverse transformations from an advanced tetracyclic common intermediate. In the established synthesis, quick formation of the two five-membered rings was efficiently achieved by an intramolecularreductive coupling
First total synthesis of Lycopodium alkaloids of the magellanane group. Enantioselective total syntheses of (-)-magellanine and (+)-magellaninone
作者:Gavin C. Hirst、Theodore O. Johnson、Larry E. Overman
DOI:10.1021/ja00060a064
日期:1993.4
Total synthesis of the tetracyclic diquinane Lycopodium alkaloids magellanine and magellaninone
作者:Leo A. Paquette、Dirk Friedrich、Emmanuel Pinard、John P. Williams、Denis St. Laurent、Brian A. Roden
DOI:10.1021/ja00063a072
日期:1993.5
Exceedingly Concise and Elegant Synthesis of (+)-Paniculatine, (−)-Magellanine, and (+)-Magellaninone
作者:Kuo-Wei Lin、Bakthavachalam Ananthan、Sheng-Fang Tseng、Tu-Hsin Yan
DOI:10.1021/acs.orglett.5b01975
日期:2015.8.7
Starting from inexpensive (+)-pulegone as the chiral building block, a highly convergent synthesis of the unusual diquinane-based structures of (+)-paniculatine (1), (-)-magellanine (2), and (+)-magellaninone (3), has been achieved. This approach is based upon a tandem acylationalkylation of ketoester 8 and palladium-catalyzed olefin insertion, oxidation, and hydrogenation for construction of the tetracyclic framework. This exceedingly concise strategy, requiring only 1214 steps, is the shortest to date.