Radical Cations of Trialkylamines: ESR Spectra and Structures
摘要:
Novel syntheses of cyclopropyldiisopropylamine (15), di-tert-butylcyclopropylamine (16), dicyclopropylisopropylamine (17), and tricyclopropylamine (18) are described. Hyperfine data were determined by ESR spectroscopy for the radical cations of these trialkylamines, as well as for those of ethyldiisopropylamine (10), diisopropyl-n-propylamine (11), dicyclohexylethylamine (12), diisopropyl-3-pentylamine (14), and 1-azabicyclo[3.3.3]undecane (manxine; 27). The radical cation of triisopropylamine (13) was reexamined under conditions of improved spectral resolution. Coupling constants of the N-14 nucleus and the beta-protons in the radical cations of 18 trialkylamines provide reliable information about the geometries of these species, which are confirmed by theoretical calculations. With the exception of a few oligocyclic amines, for which flattening is impaired by the rigid molecular framework, all of the radical cations should be planar. Correlation between the observed coupling constants of the beta-protons and the calculated values of the dihedral angle theta, defining the conformation of the alkyl substituent or the azacycloalkane, is verified. Upon oxidation, striking changes occur for those amines that have cyclopropyl substituents, because of the tendency of these groups to assume a perpendicular conformation in the neutral amines and a bisected orientation in the corresponding radical cations.
Development of a Robust Process for the Preparation of High-Quality Dicyclopropylamine Hydrochloride
摘要:
A short and efficient process for the preparation of high-quality dicyclopropylamine HCl salt is described. An oxygen-mediated Chan-Lam coupling of N-cyclopropyl 4-nitrobenzenesulfonamide with cyclopropylboronic acid was followed by an optimized p-nosyl deprotection with 1-decanethiol, providing the title compound in high chemical yield. This process addresses many of the challenges and liabilities inherent in previous synthetic approaches to this challenging molecule. The collection of key safety data enabled implementation of an oxygen-mediated process on-scale and ensured safe operation throughout development, optimization, and processing.
[EN] HETEROCYCLIC PROLINAMIDE DERIVATIVES<br/>[FR] DÉRIVÉS HÉTÉROCYCLIQUES DE PROLINAMIDE
申请人:INCEPTION 4 INC
公开号:WO2017222915A1
公开(公告)日:2017-12-28
This invention is directed to novel heterocyclic prolinamide derivatives of Formula (I), and pharmaceutically acceptable salts, solvates, solvates of the salt and prodrugs thereof, useful in the prevention (e.g., delaying the onset of or reducing the risk of developing) and treatment (e.g., controlling, alleviating, or slowing the progression of) of age-related macular degeneration (AMD) and related diseases of the eye. These diseases include dry-AMD, wet-AMD, geographic atrophy, diabetic retinopathy, retinopathy of prematurity, polypoidal choroidal vasculopathy, and degeneration of retinal or photoreceptor cells. The invention disclosed herein is further directed to methods of prevention, slowing the progress of, and treatment of dry-AMD, wet-AMD, and geographic atrophy, diabetic retinopathy, retinopathy of prematurity, polypoidal choroidal vasculopathy, and degeneration of retinal or photoreceptor cells, comprising: administration of a therapeutically effective amount of compound of the invention. The compounds of the invention are inhibitors of HTRAl. Thus, the compounds of the invention are useful in the prevention and treatment of a wide range of diseases mediated (in whole or in part) by HTRAl. The compounds of the invention are also useful for inhibiting HTRAl protease activity in an eye or locus of an arthritis or related condition.
[EN] COMBINATIONS OF HEPATITIS C VIRUS INHIBITORS<br/>[FR] ASSOCIATIONS D'INHIBITEURS DU VIRUS DE L'HÉPATITE C
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2015005901A1
公开(公告)日:2015-01-15
The present disclosure is generally directed to antiviral compounds, and more specifically directed to combinations of compounds which can inhibit the function of the NS5A protein encoded by Hepatitis C virus (HCV), compositions comprising such combinations, and methods for inhibiting the function of the NS5A protein.
[EN] HETEROAROMATIC DERIVATIVES AS NIK INHIBITORS<br/>[FR] DÉRIVÉS HÉTÉROAROMATIQUES EN TANT QU'INHIBITEURS DE NIK
申请人:JANSSEN PHARMACEUTICA NV
公开号:WO2018002217A1
公开(公告)日:2018-01-04
The present invention relates to pharmaceutical agents useful for therapy and/or prophylaxis in a mammal, and in particular to inhibitors of NF-κB-inducing kinase (NIK - also known as MAP3K14) useful for treating diseases such as cancer, inflammatory disorders, metabolic disorders and autoimmune disorders. The invention is also directed to pharmaceutical compositions comprising such compounds, and to the use of such compounds or pharmaceutical compositions for the prevention or treatment of diseases such as cancer, inflammatory disorders, metabolic disorders including obesity and diabetes, and autoimmune disorders.
[EN] BENZAMIDE COMPOUNDS AND THEIR USE AS HERBICIDES II<br/>[FR] COMPOSÉS DE BENZAMIDE ET LEUR UTILISATION EN TANT QU'HERBICIDES II
申请人:BASF SE
公开号:WO2018219936A1
公开(公告)日:2018-12-06
The invention relates to benzamides of formula (I), wherein Q is Q1 or Q2 or Q3 or Q4, and their use as herbicides. In said formula (I), R2 is R2cR2dNC(O)NR2n-Z2, R5 is hydrogen, R1, R3, R4 and R6 represent groups such as hydrogen, halogen or organic groups such as alkyl or phenyl.The invention further refers to a composition comprising such compound and to the use thereof for controlling unwanted vegetation.
[EN] FUSED PYRIDINES WHICH ACT AS INHIBITORS OF H-PGDS<br/>[FR] PYRIDINES FUSIONNÉES AGISSANT EN TANT QU'INHIBITEURS DE H-PGDS
申请人:GLAXOSMITHKLINE IP DEV LTD
公开号:WO2019116256A1
公开(公告)日:2019-06-20
A compound of formula (I) wherein R1, R2, R3, R4 χ γ anc| A are as defined herein. The compounds of the present invention are inhibitors of hematopoietic prostaglandin D synthase (H-PGDS) and can be useful in the treatment of Duchenne muscular dystrophy. Accordingly, the invention is further directed to pharmaceutical compositions comprising a compound of the invention. The invention is still further directed to methods of inhibiting H-PGDS activity and treatment of disorders associated therewith using a compound of the invention or a pharmaceutical composition comprising a compound of the invention.