建立了一种通过光催化炔酰胺氟烷基自由基环化级联直接构建环戊[ b ]二氢吲哚的方法,该方法通过一系列自由基加成、1,5-HAT、5-内三环化、分子内芳基化进行和氧化去质子化。该方案允许可控组装具有三个连续立体中心的三环结构,展示其高效率、相容性以及区域和非对映选择性,以获取具有药理学意义的氟烷基化环戊二氢吲哚。它代表了炔烃四官能化的极少数例子之一。
Preparation, characterization and application of succinimidinium hydrogensulfate ([H-Suc]HSO4) as an efficient ionic liquid catalyst for the N-Boc protection of amines
[EN] IMIDAZOLE DERIVATIVES AS IDO INHIBITORS<br/>[FR] DÉRIVÉS IMIDAZOLE COMME INHIBITEURS DE L'IDO
申请人:NEWLINK GENETICS
公开号:WO2011056652A1
公开(公告)日:2011-05-12
Presently provided are IDO inhibitors of general formulae (VII), (VIII) as shown below and pharmaceutical compositions thereof, useful for modulating an activity of indoleamine 2,3-dioxygenase; treating indoleamine 2,3-dioxygenase (IDO) mediated immunosuppression; treating a medical conditions that benefit from the inhibition of enzymatic activity of indoleamine-2,3-dioxygenase; enhancing the effectiveness of an anti-cancer treatment comprising administering an anti-cancer agent; treating tumor-specific immunosuppression associated with cancer; and treating immunosupression associated with an infectious disease.
The invention relates to antibacterial compounds of formula (I): wherein U represents CH or N; V represents CH or N, provided that at least one of U and V does not represent N; R represents H, halogen, methyl, methoxy, cyano or ethynyl; either W represents a phenyl group substituted in para position with (C1-C3)alkyl, (C1-C3)alkoxy or (C1-C3)thioalkoxy and optionally in meta position with halogen, or W is a group having one of the formulae W1 and W2 below: W1 w2 wherein Q is O or S and X is CH or N; and salts of such compounds.
Preparation, characterization and application of succinimidinium hydrogensulfate ([H-Suc]HSO<sub>4</sub>) as an efficient ionic liquid catalyst for the N-Boc protection of amines
Succinimidinium hydrogensulfate ([H-Suc]HSO4), which is prepared from the reaction of succinimide and sulfuric acid, showed excellent catalytic activity for theN-Boc protection of various amines under solvent free conditions.
A de novo method for direct construction of cyclopenta[b]indolines via a photocatalytic fluoroalkylative radical cyclizationcascade of ynamides has been established, which proceeds via a sequence of radical addition, 1,5-HAT, 5-endo-trig cyclization, intramolecular arylation, and oxidative deprotonation. This protocol allows for the controllable assembly of a tricyclic architecture with three contiguous
建立了一种通过光催化炔酰胺氟烷基自由基环化级联直接构建环戊[ b ]二氢吲哚的方法,该方法通过一系列自由基加成、1,5-HAT、5-内三环化、分子内芳基化进行和氧化去质子化。该方案允许可控组装具有三个连续立体中心的三环结构,展示其高效率、相容性以及区域和非对映选择性,以获取具有药理学意义的氟烷基化环戊二氢吲哚。它代表了炔烃四官能化的极少数例子之一。