Synthetic Studies on Condensed-Azole Derivatives. II. Application of a Computer-Assisted Automated Synthesis Apparatus for the Synthesis of N-Substituted Sulfamoylpropylthioimidazo(1,2-b)pyridazines.
作者:Masaaki KUWAHARA、Shinji KATO、Tohru SUGAWARA、Akio MIYAKE
DOI:10.1248/cpb.43.1511
日期:——
For the purpose of improving the anti-asthmatic activity of 3-(imidazo[1, 2-b]pyridazin-6-yl)thiopropanesulfon-amide (I), the computer-assisted automated synthesis apparatus developed at Takeda was used to modify the sulfon-amide moiety of I. Several kinds of sulfonamide derivatives (1-24) were easily obtained, confirming the usefulness of the automated synthesis apparatus in the laboratory. Anti-asthmatic activity of these derivatives was examined in a platelet activating factor (PAF)-induced bronchoconstriction. Among them, the piperidino-piperidine derivative (13) was found to possess comparable activity to that of I.
为了提高3-(imidazo[1, 2-b]吡咯啉-6-基)硫丙烷磺酰胺(I)的抗哮喘活性,采用了在武田开发的计算机辅助自动合成设备对I的磺酰胺基团进行了改造。几种磺酰胺衍生物(1-24)很容易获得,确认了该自动合成设备在实验室中的实用性。这些衍生物的抗哮喘活性在血小板激活因子(PAF)诱导的支气管收缩中进行了测试。其中,哌啶-哌啶衍生物(13)显示出与I相当的活性。