We report a selective ruthenium catalyzed reduction of tertiary amides on the side chain of Fmoc-Gln-OtBu derivatives, leading to innovative unnatural α,β or γ-amino acids functionalized with tertiary amines. Rapid and scalable, this process allowed us to build a library of basic unnatural aminoacids at the gram-scale and directly usable for liquid- or solid-phase peptide synthesis. The diversity
我们报道了选择性钌催化的Fmoc-Gln-O t Bu衍生物侧链上的叔酰胺还原,导致创新的用叔胺官能化的非天然α,β或γ-氨基酸。快速且可扩展,该过程使我们能够建立克级的基本非天然氨基酸文库,并可直接用于液相或固相肽合成。可用叔胺的多样性使我们能够调节所得氨基酸的物理化学性质,例如碱性或疏水性。
[EN] ORNITHINE- AND LYSINE-DERIVATIVES FOR THE TREATMENT OF PAIN<br/>[FR] DÉRIVÉS DE L'ORNITHINE ET DE LA LYSINE POUR LE TRAITEMENT DE LA DOULEUR
申请人:UNIV STRASBOURG
公开号:WO2013178810A1
公开(公告)日:2013-12-05
The invention relates to novel compounds, derivatives of ornithine or of lysine, to pharmaceutical compositions containing same and to the use of same in the treatment of pain.
[EN] NOVEL NON-NATURAL AMINO ACIDS, THEIR PROCESS OF PREPARATION AND USES THEREOF<br/>[FR] NOUVEAUX ACIDES AMINÉS NON NATURELS, LEUR PROCÉDÉ DE PRÉPARATION ET LEURS UTILISATIONS
申请人:UNIV STRASBOURG
公开号:WO2016038104A1
公开(公告)日:2016-03-17
The present invention concerns novel non-natural amino acids, more particularly non-natural analogs of arginine, ornithine or lysine, their process of preparation and their uses. In particular, such novel amino acids have the formula (I): (I).
Through the development of a new class of unnatural ornithine derivatives as bioisosteres of arginine, we have designed an orally active peptidomimetic antagonist of neuropeptide FF receptors (NPFFR). Systemic low-dose administration of this compound to rats blocked opioid-induced hyperalgesia, without any apparent side-effects. Interestingly, we also observed that this compound potentiated opioid-induced analgesia. This unnatural ornithine derivative provides a novel therapeutic approach for both improving analgesia and reducing hyperalgesia induced by opioids in patients being treated for chronic pain.