Conjugates of Catecholamines. 5. Synthesis and β-Adrenergic Activity of N-(Aminoalkyl)norepinephrine Derivatives
摘要:
A novel series of N-aminoalkyl congeners and model derivatives of norepinephrine has been synthesized. Compounds that were structurally related to epinephrine were prepared from fully protected intermediates. Alternatively, isoproterenol-related compounds were synthesized via reductive amination of preformed methyl ketone derivatives with norepinephrine. The beta-adrenergic activities of these new compounds were assessed through measurement of intracellular cyclic AMP accumulation in S49 mouse lymphoma cells and displacement of iodocyanopindolol (ICYP) from membrane preparations. Congeners that contained an underivatized primary amine function exhibited virtually no activity in these assays. However, when this amine function was acylated (e.g., to an amide, carbamate, urea, sulfonamide, etc.), the products exhibited generally increased beta-adrenergic activity, which was, however, strongly dependent on the nature of the acylating group and also the length of the spacer. In particular, a benzyl carbamate derivative containing a branched, seven-carbon spacer group was 40 times more potent than isoproterenol in the in vitro S49 assay.
Conjugates of Catecholamines. 5. Synthesis and β-Adrenergic Activity of N-(Aminoalkyl)norepinephrine Derivatives
摘要:
A novel series of N-aminoalkyl congeners and model derivatives of norepinephrine has been synthesized. Compounds that were structurally related to epinephrine were prepared from fully protected intermediates. Alternatively, isoproterenol-related compounds were synthesized via reductive amination of preformed methyl ketone derivatives with norepinephrine. The beta-adrenergic activities of these new compounds were assessed through measurement of intracellular cyclic AMP accumulation in S49 mouse lymphoma cells and displacement of iodocyanopindolol (ICYP) from membrane preparations. Congeners that contained an underivatized primary amine function exhibited virtually no activity in these assays. However, when this amine function was acylated (e.g., to an amide, carbamate, urea, sulfonamide, etc.), the products exhibited generally increased beta-adrenergic activity, which was, however, strongly dependent on the nature of the acylating group and also the length of the spacer. In particular, a benzyl carbamate derivative containing a branched, seven-carbon spacer group was 40 times more potent than isoproterenol in the in vitro S49 assay.
INOSITOL AND TREHALOSE DERIVATIVES AND PHARMACEUTICAL COMPOSITIONS FOR TREATING NEURODEGENERATIVE DISEASES COMPRISING THE SAME
申请人:Chung Sung-Kee
公开号:US20110224423A1
公开(公告)日:2011-09-15
The invented inositol and trehalose derivatives, prepared by introducing multiple units of the guanidine group to the backbone molecules, show excellent blood-brain barrier permeability, and accordingly, it can be easily transported to the brain tissues and utilized for the treatment of neurodegenerative diseases such as Alzheimer's disease and Huntington's disease.
[EN] COMPOSITION AND METHOD FOR NEW THERAPEUTIC AGENTS INCLUDING GUANIDINIUM-PRESENTING DENDRIMERS AND BRANCHED STRUCTURES<br/>[FR] COMPOSITION ET PROCÉDÉ POUR DE NOUVEAUX AGENTS THÉRAPEUTIQUES COMPRENANT DES DENDRIMÈRES DE PRÉSENTATION DE GUANIDINIUM ET DES STRUCTURES RAMIFIÉES
申请人:UNIV LELAND STANFORD JUNIOR
公开号:WO2021257723A9
公开(公告)日:2022-03-10
US9371350B2
申请人:——
公开号:US9371350B2
公开(公告)日:2016-06-21
Conjugates of Catecholamines. 5. Synthesis and β-Adrenergic Activity of N-(Aminoalkyl)norepinephrine Derivatives
作者:Allen B. Reitz、Etienne Sonveaux、Roberto P. Rosenkranz、Michael S. Verlander、Kenneth L. Melmon、Brian B. Hoffman、Yasio Akita、Neal Castagnoli、Murray Goodman
DOI:10.1021/jm50001a017
日期:1985.5
A novel series of N-aminoalkyl congeners and model derivatives of norepinephrine has been synthesized. Compounds that were structurally related to epinephrine were prepared from fully protected intermediates. Alternatively, isoproterenol-related compounds were synthesized via reductive amination of preformed methyl ketone derivatives with norepinephrine. The beta-adrenergic activities of these new compounds were assessed through measurement of intracellular cyclic AMP accumulation in S49 mouse lymphoma cells and displacement of iodocyanopindolol (ICYP) from membrane preparations. Congeners that contained an underivatized primary amine function exhibited virtually no activity in these assays. However, when this amine function was acylated (e.g., to an amide, carbamate, urea, sulfonamide, etc.), the products exhibited generally increased beta-adrenergic activity, which was, however, strongly dependent on the nature of the acylating group and also the length of the spacer. In particular, a benzyl carbamate derivative containing a branched, seven-carbon spacer group was 40 times more potent than isoproterenol in the in vitro S49 assay.