meta- or para-position are highly effective catalysts for the amide condensation reaction in less-polar solvents. In this paper, we report that N-alkyl-4-boronopyridinium halides are more effective catalysts than the previous ones in more polar solvents. N-Alkyl-4-boronopyridinium halides are effective not only for amide condensation between equimolar mixtures of carboxylic acids and amines but also
Borate esters as convenient reagents for direct amidation of carboxylic acids and transamidation of primary amides
作者:Pavel Starkov、Tom D. Sheppard
DOI:10.1039/c0ob01069c
日期:——
with a variety of carboxylic acids and amines. With trimethyl or tris(2,2,2-trifluoroethyl) borate, amides are obtained in good to excellent yield and high purity after a simple work-up procedure. Tris(2,2,2-trifluoroethyl) borate can also be used for the straightforward conversion of primaryamides to secondary amidesvia transamidation.
Chemoselective calcium-catalysed direct amidation of carboxylic esters
作者:D. Thao Nguyen、Danny C. Lenstra、Jasmin Mecinović
DOI:10.1039/c5ra18288c
日期:——
Cheap, non-toxic and environmentally benign CaI2 catalyses direct amide bond formation between unactivated carboxylic esters and primary amines in excellent yields.
[EN] MODIFIED AMINO ACID DERIVATIVES FOR THE TREATMENT OF NEUROLOGICAL DISEASES AND SELECTED PSYCHIATRIC DISORDERS<br/>[FR] DÉRIVÉS D'ACIDES AMINÉS MODIFIÉS POUR LE TRAITEMENT DE MALADIES NEUROLOGIQUES ET DE TROUBLES PSYCHIATRIQUES SÉLECTIONNÉS
申请人:UNIV JAGIELLONSKI
公开号:WO2020214043A1
公开(公告)日:2020-10-22
2-(2,5-dioxopyrrolidin-1-yl)propanamide and 2-(2-oxopyrrolidin-1-yl)propanamide derivatives with R-configuration at the stereogenic center are disclosed, showing broad- spectrum protective activity in animal models of epileptic seizures, pain, depression and anxiety that are simultaneously devoid of undesirable sedative effects. Additionally, the disclosed derivatives have neuroprotective effects in the in vitro and in vivo studies.
[EN] WATER-SOLUBLE, MODIFIED AMINO ACID DERIVATIVES FOR TREATMENT OF NEUROLOGICAL DISEASES, AND SELECTED PSYCHIATRIC DISORDERS<br/>[FR] DÉRIVÉS D'ACIDES AMINÉS MODIFIÉS, SOLUBLES DANS L'EAU, POUR LE TRAITEMENT DE MALADIES NEUROLOGIQUES ET DE TROUBLES PSYCHIATRIQUES SÉLECTIONNÉS
申请人:UNIV JAGIELLONSKI
公开号:WO2021210997A1
公开(公告)日:2021-10-21
Water-soluble analogs of compounds intended for the treatment of neurological diseases, epilepsy, neuropathic pain and migraine, and psychiatric disorders, including anxiety and depression, especially suitable for the preparation of oral or parenteral drug forms, are disclosed.