[EN] N-HETEROARYL COMPOUNDS WITH CYCLIC BRIDGING UNIT FOR THE TREATMENT OF PARASITIC DISEASES [FR] COMPOSÉS N-HÉTÉROARYLÉS AYANT UNE UNITÉ PONTANTE CYCLIQUE POUR LE TRAITEMENT DE MALADIES PARASITAIRES
Catalytic Asymmetric Mannich Type Reaction with Tri-/Difluoro- or Trichloroacetaldimine Precursors
作者:Yang’en You、Sanzhong Luo
DOI:10.1021/acs.orglett.8b03083
日期:2018.11.16
A highly efficient catalyticasymmetricMannich type reaction of CF3-, CF2H-, or CCl3-acetaldimine precursors by a chiral primary amine is presented. This protocol provides facile access to chiral CF3-, CF2H-, or trichloroethyl amines in excellent yields and high enantioselectivity (up to 99% yield, up to >99% ee).
[EN] HETEROARYL COMPOUNDS WITH A-CYCLIC BRIDGING UNIT<br/>[FR] COMPOSÉS HÉTÉROARYLES À UNITÉ DE PONTAGE CYCLIQUE
申请人:INTERVET INT BV
公开号:WO2013144179A1
公开(公告)日:2013-10-03
This invention relates to certain heteroaryl compounds which may be used as medicaments, more specifically as medicaments for treating animals. The medicament can be used for the treatment of parasitic infections such as helminth infections and the treatment of parasitosis caused by such infections. This invention also relates to uses of the compounds to make medicaments and treatments comprising the administration of the compounds to animals in need of the treatments. This invention also relates to pharmaceutical compositions and kits comprising the compounds.
Formylation of Fluoroalkyl Imines through Visible-Light-Enabled H-Atom Transfer Catalysis: Access to Fluorinated α-Amino Aldehydes
作者:Sen Yang、Shuangyu Zhu、Dengfu Lu、Yuefa Gong
DOI:10.1021/acs.orglett.9b00128
日期:2019.4.5
visible-light-enabled catalytic formylation of fluoroalkyl imines is developed. With readily accessible starting materials and organocatalysts, this method provides a general approach to masked fluoroalkyl amino aldehydes. A synergistic catalytic effect between the photosensitizer and the H atom transfer agent was proven pivotal to this transformation. After removing the mask, free aldehydes can be obtained and
New peptidomimetics featuring CH(RF)NH units, having different degree of fluorination, as peptide-bond surrogates have been synthesized. The key step in the synthesis consists of a stereoselective aza-Michael addition of chiral α-amino acid esters to β-fluoroalkyl-α-nitroethenes. The diastereoselection of the process was influenced by the electronegativity, rather than by the steric bulk, of the fluorinated residue RF in β-position of the nitroalkene acceptors. Replacement of a single F atom of RF by a hydrogen or methyl group brings about a dramatic drop of stereocontrol, whereas Br, Cl, and CF3, albeit bulkier than F, provide poorer results in terms of stereocontrol.
This invention relates to certain N-heteroaryl compounds that are generally useful as medicaments, more specifically as medicaments for animals. The medicament can preferably be used for the treatment of helminth infections and the treatment of parasitosis, such as caused by helminth infections. This invention also relates to uses of the compounds to make medicaments and treatments comprising the administration of the compounds to animals in need of the treatments. This invention also relates to novel N-heteroaryl compounds and the preparation of said compounds. Moreover this invention relates to pharmaceutical compositions and kits comprising the compounds.