[EN] INHIBITORS OF INDOLEAMINE 2,3-DIOXYGENASE AND/OR TRYPTOPHAN 2,3-DIOXYGENASE<br/>[FR] INHIBTEURS DE L'INDOLÉAMINE 2,3-DIOXYGÉNASE ET/OU DU TRYPTOPHANE DIOXYGÉNASE
申请人:IDORSIA PHARMACEUTICALS LTD
公开号:WO2019138107A1
公开(公告)日:2019-07-18
The present invention relates to compounds of Formula (I) inhibiting indoleamine 2,3-dioxygenase (IDO) and/or tryptophan 2,3-dioxygenase (TDO) enzymes. Further, their synthesis and their use as medicaments in inter alia the treatment of cancer is disclosed. Formula (I)
water using D-glucose and KOH as green reagents is reported. The protocol is simple, inexpensive, scalable, and can be applied to different aromatic, heteroaromatic and sulphonyl azides. A high level of chemoselectivity is observed for azide reduction in the presence of other reducible functionalities like cyano, nitro, ether, ketone, amide and acid. The reaction gets completed in a short time (5–20
Aromatic, heteroaromatic and sulfonyl azides were conveniently reduced to the corresponding amines in excellent yields using hydrazine hydrate in the presence of iron oxide nanoparticles. The Fe3O4-MNPs could be easily separated by an external magnet, and recycled ten times without significant loss of the catalytic efficiency.
An efficient and simple protocol for the synthesis of aryl azides by the coupling of aryl iodides with sodiumazide, in good to excellent yields in DMSO at 95 °C under catalysis by Cu(OAc)2-H2O and 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU), has been established. The optimised loadings of Cu(OAc)2-H2O and DBU were 10 mol% and 15 mol% respectively.
Traceless selenocarboxylates for the one-pot synthesis of amides and derivatives
作者:Luana Silva、Alisson R. Rosário、Bianca M. Machado、Diogo S. Lüdtke
DOI:10.1016/j.tet.2020.131834
日期:2021.1
procedure for glycosyl amides synthesis using selenocarboxylate as traceless reagent. Herein, we present a further application of selenocarboxylate-azide reaction for amide bond formation on a broader range of substrates, including heterocyclic systems and fatty acid. This method proved to be highly efficient for the synthesis of primary and secondary amides, sulfonamides, imides, phosphoramide and also