Novel bis-basic esters and amides of xanthene and xanthone of the formula ##SPC1## Wherein: Z is oxygen or H.sub.2 ; each of R.sup.1 and R.sup.2 is hydrogen, (lower)-alkyl of 1 to 6 carbon atoms, cycloalkyl of 3 to 6 ring carbon atoms, alkenyl of 3 to 6 carbon atoms having the vinyl unsaturation in other than the 1-position of the alkenyl group, or each set of R.sup.1 and R.sup.2 taken together with the nitrogen atom to which they are attached is pyrrolidino, piperidino, N-(lower)alkylpiperazino, or morpholino; Each A is alkylene of 2 to about 8 carbon atoms and separates its adjacent Y and amino nitrogen by an alkylene chain of at least 2 carbon atoms; and each Y is oxygen, or >N--R wherein R is hydrogen or (lower)-alkyl of 1 to 4 carbon atoms; Or a pharmaceutically acceptable acid addition salt thereof. These compounds can be used as pharmaceuticals for preventing or inhibiting a viral infection.
新型的苯并
喹喔啉和苯并酮双碱基酯和酰胺的
化学式为:##
SPC1## 其中:Z为氧或H.sub.2;每个R.sup.1和R.sup.2为氢、1到6个碳原子的(低级)-烷基、3到6个环状碳原子的环烷基、具有3到6个碳原子的烯基,且烯基中的
乙烯不饱和性位于烯基基团的1-位置之外,或者每组R.sup.1和R.sup.2与它们所连接的氮原子一起形成
吡咯烷基、
哌啶基、N-(低级)烷基
哌嗪基或吗啉基;每个A为2到约8个碳原子的烷基,并通过至少2个碳原子的烷基链将其相邻的Y和
氨基氮分开;每个Y为氧或>N--R,其中R为氢或1到4个碳原子的(低级)-烷基;或其药学上可接受的酸加盐。这些化合物可用作预防或抑制病毒感染的药物。