The present invention relates to compounds of the formula (I) and in particular to medicaments comprising at least one compound of the formula I for use in the treatment and/or prophylaxis of physiological and/or pathophysiological conditions in the triggering of which cathepsin D is involved, in particular for use in the treatment and/or prophylaxis of osteoarthritis, traumatic cartilage injuries, arthritis, pain, allodynia or hyperalgesia.
Photoredox (
<i>NN</i>
)Mn(I) Catalysed Acceptorless Dehydrogenation: Synthesis of Amides, Aldehydes and Ketones
作者:Abhisek Joshi、Saloni Kumari、Sabuj Kundu
DOI:10.1002/adsc.202201024
日期:2022.12.20
An acceptorless dehydrogenative methodology for the synthesis of amides, aldehydes and ketones from hemiaminal and alcohols in the presence of manganese(I) based photocatalyst is developed. Several aromatic, aliphatic, heterocyclic aldehydes and primary aryl amines as well as secondary alkyl amines were coupled, providing the corresponding amides. The methodology was also extended for dehydrogenation
Mesoporous Niobium Oxide Spheres as an Effective Catalyst for the Transamidation of Primary Amides with Amines
作者:Subhash Chandra Ghosh、Cheng Chao Li、Hua Chun Zeng、Joyce S. Y. Ngiam、Abdul M. Seayad、Anqi Chen
DOI:10.1002/adsc.201300717
日期:2014.2.10
AbstractMesoporous niobium oxide spheres (MNOS), conveniently prepared by a novel antisolvent precipitation approach, have been shown to be an effective catalyst for the transamidation of primary amides with amines. This novel transamidation can be efficiently carried out under solvent‐free conditions and is applicable to a wide range of primary amides and amines to provide N‐alkyl amides in good to excellent yields. The catalyst is highly stable and reusable. The application of this transamidation reaction has been demonstrated in the synthesis of antidepressant drug moclobemide and other drug‐like compounds.magnified image
US9884814B2
申请人:——
公开号:US9884814B2
公开(公告)日:2018-02-06
Near-Ambient-Temperature Dehydrogenative Synthesis of the Amide Bond: Mechanistic Insight and Applications
作者:Sayan Kar、Yinjun Xie、Quan Quan Zhou、Yael Diskin-Posner、Yehoshoa Ben-David、David Milstein
DOI:10.1021/acscatal.1c00728
日期:2021.6.18
bond synthesis via acceptorless dehydrogenative coupling of amines and alcohols all require high reaction temperatures for effective catalysis, typically involving reflux in toluene, limiting their potential practical applications. Herein, we report a system for this reaction that proceeds under mild conditions (reflux in diethyl ether, boiling point 34.6 °C) using ruthenium PNNH complexes. The low-temperature