(-)-fusarisetin A (1) 的简洁、无保护基全合成通过九个步骤从市售 (S)-(-)-香茅醛有效地实现。合成方法受到我们提出的 1 生物合成的启发。我们策略的关键转变包括通过立体选择性 IMDA 反应和一锅 TEMPO 诱导的自由基环化/氨解形成 C 环产生的十氢萘部分的简便构建1. 我们的路线适合用于生物学评价的类似物合成。
The specification relates to compounds of Formula (I) and pharmaceutically acceptable salts thereof. The specification also relates to processes and intermediates used for their preparation, pharmaceutical compositions containing them and their use in the treatment of cell proliferative disorders.
[EN] HIV PROTEASE INHIBITORS<br/>[FR] INHIBITEURS DE LA PROTÉASE DU VIH
申请人:MERCK SHARP & DOHME
公开号:WO2015095265A1
公开(公告)日:2015-06-25
The present invention is directed to 5-heteroarylmorpholine derivatives and their use in the inhibition of HIV protease, the inhibition of HIV replication, the prophylaxis of infection by HIV, the treatment of infection by HIV, and the prophylaxis, treatment, and delay in the onset or progression of AIDS. The compounds and their salts can be employed as ingredients in pharmaceutical compositions, optionally in combination with other antivirals, immunomodulators, antibiotics or vaccines.
Two Syntheses of (−)-Kainic Acid via Highly Stereoselective Zinc-ene Cyclizations
作者:Justin M. Chalker、Ao Yang、Kai Deng、Theodore Cohen
DOI:10.1021/ol701733u
日期:2007.9.1
Two concise, high-yielding syntheses of enantioenriched (-)-kainic acid are presented. Both routes feature a Pd-catalyzed Zn-ene cyclization that proceeds with complete diastereoselectivity. The key step can be carried out on a multigram scale, and the overall yields are among the highest to date for this marine alkaloid.
The efficient synthesis of orthogonallyprotectedglycerols, 2-aminopropane-1,3-diols and 2aminobutane-1,4-diols that can constitute useful tools in heterocyclicchemistry, is reported. These interesting tri-functionalized small synthons were easily prepared from serine or aspartic acid. In addition, these substrates can be readily transformed into their iodide derivatives in very good yields.
Asymmetric Synthesis of Chiral 1,2-Amino Alcohols and Morpholin-2-ones from Arylglyoxals
作者:Wyatt C. Powell、Maciej A. Walczak
DOI:10.1021/acs.joc.8b01516
日期:2018.9.7
Chiral 1,2-amino alcohols are privileged scaffolds with important applications as drug candidates and chiral ligands. Although various methods for the preparation of this structural motif have been reported, these methods are limited because of the use of precious metals and ligands. Here, we report a practical and high yielding synthesis of chiral 1,2-amino alcoholsusing arylglyoxals and pseudoephedrine