Characterization of stress degradation products of blonanserin by UPLC-QTOF-tandem mass spectrometry
作者:Pradipbhai D. Kalariya、Prinesh N. Patel、Mahesh Sharma、Prabha Garg、R. Srinivas、M. V. N. Kumar Talluri
DOI:10.1039/c5ra10641a
日期:——
photolysis and thermal stress conditions. A selective separation was achieved on a Waters BEH C18 analytical column (50 mm × 2.1 mm, 1.7 μm). The structural characterization of the degradation products was performed using UPLC/QTOF/MS/MS. The drug was found to degrade in oxidative and photolytic conditions, whereas it was stable under hydrolytic, photolytic and thermal stress conditions. A total of seven hitherto
It is intended to provide a preparation for percutaneous administration of 2-(4-ethyl-1-piperazinyl)-4-(4-fluorophenyl)-5,6,7,8,9,10-hexahydrocycloocta[b]pyridine (Compound A), which inhibits the generation of a metabolite and is capable of continuously maintaining a blood drug level. Specifically, a tape preparation comprising an adhesive layer formed on one surface of a support, characterized in that the adhesive layer contains (1) Compound A or a physiologically acceptable acid addition salt thereof, and (2) an acrylic adhesive, or (1) Compound A or a physiologically acceptable acid addition salt thereof, (2) an acrylic adhesive, and (3) a permeation enhancer is provided.
本发明旨在提供一种用于经皮给药 2-(4-乙基-1-哌嗪基)-4-(4-氟苯基)-5,6,7,8,9,10-六氢环辛烷[b]吡啶(化合物 A)的制剂,该制剂可抑制代谢产物的生成,并能持续保持血药浓度。具体地说,本发明提供了一种胶带制剂,该胶带制剂包括在支撑物的一个表面上形成的粘合剂层,其特征在于粘合剂层包含(1)化合物 A 或其生理学上可接受的酸加成盐,以及(2)丙烯酸粘合剂,或(1)化合物 A 或其生理学上可接受的酸加成盐,(2)丙烯酸粘合剂,以及(3)渗透增强剂。
2-(1-piperazinyl)-4-phenylcycloalkanopyridine derivatives, processes for the production thereof, and pharmaceutical composition containing the same