申请人:Allen & Hanburys Limited
公开号:US03932416A1
公开(公告)日:1976-01-13
Compounds of the general formula (I): ##SPC1## in which R.sub.1, R.sub.2 and R.sub.3 may be the same or different and each represents a hdyrogen atom, an alkyl group, a nitro group, a halogen atom or a group of the formula --NR.sub.4 R.sub.5 or --OR.sub.4 ; in which the groups R.sub.4 and R.sub.5 may be the same or different and each represent a hydrogen atom, or an alkyl, alkenyl or cycloalkyl group (which alkyl group may optionally be substituted by alkoxy, hydroxy, amino, alkylamino, dialkylamino or aryl groups) or R.sub.4 and R.sub.5 together with the nitrogen atom form a heterocyclic ring which may optionally contain additional hetero atoms, e.g. morpholino or piperazinyl; and R.sub.6 represents a hydrogen atom or an alkyl group. These compounds have biological activity, particularly in inhibiting the release of spasmogenic substances arising as a consequence of antigen-antibody reactions.
通式(I)的化合物:##SPC1##其中R.sub.1、R.sub.2和R.sub.3可以相同也可以不同,每个代表一个氢原子、一个烷基基团、一个硝基基团、一个卤原子或一个具有--NR.sub.4 R.sub.5或--OR.sub.4的基团;其中基团R.sub.4和R.sub.5可以相同也可以不同,每个代表一个氢原子,或一个烷基、烯基或环烷基基团(该烷基基团可以选择地被烷氧基、羟基、氨基、烷基氨基、二烷基氨基或芳基基团取代),或R.sub.4和R.sub.5与氮原子一起形成一个可能包含额外杂原子的杂环环,例如吗啡啉或哌嗪基团;而R.sub.6代表一个氢原子或一个烷基基团。这些化合物具有生物活性,特别是在抑制由抗原-抗体反应引起的痉挛原物质释放方面。