Structure−Activity Relationships and Effects on Neuroactive Steroid Synthesis in a Series of 2-Phenylimidazo[1,2-a]pyridineacetamide Peripheral Benzodiazepine Receptors Ligands
摘要:
A series of 36 imidazopyridineacetamides (2-37) were designed and synthesized to evaluate the effects of structural changes on the amide nitrogen at both central (CBRs) and peripheral benzodiazepine receptors (PBRs). These changes include variations in the length and number of the alkyl groups as well as introduction of different aromatic, heteroaromatic, and conformationally constrained groups. The affinities of these compounds for CBRs and PBRs were determined, and the results indicate that bulkiness of the substituents, their branching, and length beyond an optimal value may cause hindrance to the ligand in its interaction with the receptor. The presence of aromatic or conformationally constrained substituents on the carboxamide nitrogen can be conducive to high affinity and selectivity. Furthermore, the ability of a subset of the most active ligands to stimulate synthesis of neuroactive steroids in plasma and brain was evaluated in vivo and in vitro. Compound 3 exhibited very marked effects on the peripheral and central synthesis of neuroactive steroids, while 36 (potent at subnanomolar level) showed a slight ability to affect neuroactive steroid content in the cerebral cortex.
The present invention relates to a process for the preparation of a hydrogel and to a hydrogel obtainable by said process. The present invention further relates to a process for the preparation of a hydrogel-spacer conjugate, to a hydrogel-spacer conjugate obtainable by said process, to a process for the preparation of a carrier-linked prodrug and to carrier-linked prodrugs obtainable by said process, in particular to carrier-linked prodrugs that provide for a controlled or sustained release of a drug from a carrier. In addition, the invention relates to the use of the hydrogel for the preparation of a carrier-linked prodrug.
[EN] PROTECTING GROUP COMPRISING A PURIFICATION TAG<br/>[FR] GROUPE PROTECTEUR COMPRENANT UNE ÉTIQUETTE DE PURIFICATION
申请人:ASCENDIS PHARMA AS
公开号:WO2015052155A1
公开(公告)日:2015-04-16
The present invention relates to compounds comprising a protecting group moiety-tag moiety conjugate, a method of purification and monoconjugates obtained from such method of purification.
本发明涉及包含保护基团-标记基团共轭物的化合物,以及一种纯化方法和从该纯化方法获得的单共轭物。
Biodegradable Polyethylene Glycol Based Water-Insoluble Hydrogels
申请人:Rau Harald
公开号:US20120156259A1
公开(公告)日:2012-06-21
The present invention relates to biodegradable polyethylene glycol based water-insoluble hydrogels comprising backbone moieties which are interconnected by hydrolytically degradable bonds, the backbone moieties further comprising reactive functional groups, wherein the water-insoluble hydrogel is further characterized in that the ratio between the time period for the complete degradation of the hydrogel by hydrolysis of the degradable bonds into water-soluble degradation products comprising one or more backbone moieties and the time period for the release of the first 10 mol-% of water-soluble degradation products comprising one or more backbone moieties based on the total amount of backbone moieties in the hydrogel is greater than 1 and equal to or less than 2. The invention further relates to conjugates of such hydrogels with ligands or ligating groups, prodrugs and pharmaceutical compositions as well as their use in a medicament.
The present invention relates to compounds comprising a protecting group moiety-tag moiety conjugate, a method of purification and monoconjugates obtained from such method of purification.
本发明涉及包含保护基团-标记基团共轭物的化合物、纯化方法以及通过这种纯化方法获得的单体。
BIODEGRADABLE POLYETHYLENE GLYCOL BASED WATER-INSOLUBLE HYDROGELS