The invention provides compounds of Formula (I):
1
wherein R
1
-R
4
, p and q have any of the values described in the specification, as well as pharmaceutical salts thereof, and pharmaceutical compositions containing such compounds or salts. The compounds and salts are 5-HT ligands and are useful for treating diseases, disorders, and/or conditions in a mammal wherein activity of a 5-HT receptor is implicated. The compounds and salts are particularly useful for treating diseases of the central nervous system.
作者:Liang Zhao、Jonathan P. May、Jack Huang、David M. Perrin
DOI:10.1021/ol202880y
日期:2012.1.6
The hydroxypyrroloindolenine (Hpi) motif forms the fundamental core of the pentacyclic natural product, brevianamideE, the concise stereoselective synthesis of which, via oxidative cyclization, is described.
The marine natural product flustramineCfrom the bryozoanFlustrafoliacea was synthesized in five steps and 38% yield starting from Nb-methyltryptamine. The key step is the biomimetic oxidation of the natural product deformylflustrabromine causing selective 1,2-rearrangement of the inverse prenyl group. By 1H,15N HMBC experiments, it is unambiguously shown that the reaction with t-BuOCl commences
Total Synthesis of Gypsetin, Deoxybrevianamide E, Brevianamide E, and Tryprostatin B: Novel Constructions of 2,3-Disubstituted Indoles
作者:Jeffrey M. Schkeryantz、Jonathan C. G. Woo、Phieng Siliphaivanh、Kristopher M. Depew、Samuel J. Danishefsky
DOI:10.1021/ja9925249
日期:1999.12.1
diketopiperazine (19). Total syntheses of deoxybrevianamide E (24) and brevianamide E (25) following similar procedures are also described. The reaction of nucleophiles with in situ-generated 3-chloroindolenines provides a route to 2,3-disubstituted indoles from 3-substituted precursors. Indications of the scope and limitations of such reactions are provided. A totalsynthesis of tryprostatinB (41), a diketopiperazine
描述了一种简洁有效的酰基辅酶 A:胆固醇酰基转移酶抑制剂 gypsetin (1) 的全合成。该路线的特点是将反向异戊二烯基团引入 N-邻苯二甲酰基保护的色氨酸的 C2 位的直接方法 (11)。gypsetin 的全合成是通过二甲基二环氧乙烷促进的预制二酮哌嗪的双氧化环化反应完成的 (19)。还描述了遵循类似程序的脱氧短酰胺 E (24) 和短酰胺 E (25) 的全合成。亲核试剂与原位生成的 3-氯吲哚啉的反应提供了从 3-取代前体生成 2,3-二取代吲哚的途径。提供了此类反应的范围和限制的指示。胰前列腺素 B (41) 的全合成,完成了衍生自 l-色氨酸衍生物(在吲哚的 α 位置带有异戊二烯基)和 l-脯氨酸的二酮哌嗪。关键步骤涉及引入异戊二烯功能......
Highly Active Modulators of Indole Signaling Alter Pathogenic Behaviors in Gram‐Negative and Gram‐Positive Bacteria
作者:Marine J. Minvielle、Kristen Eguren、Christian Melander
DOI:10.1002/chem.201303510
日期:2013.12.16
Indole is a universal signal that regulates various bacterial behaviors, such as biofilm formation and antibiotic resistance. To generate mechanistic probes of indolesignaling and control indole‐mediated pathogenic phenotypes in both Gram‐positive and Gram‐negativebacteria, we have investigated the use of desformylflustrabromine (dFBr) derivatives to generate highlyactiveindole mimetics. We have