The present invention relates to benzo\x9bc!phenanthridinium derivative of the general formula A: ##STR1## wherein M and N individually represent a hydroxyl or lower alkoxy group, or M and N simultaneously represent a hydrogen atom or together form a methylenedioxy group, X.sup.- represents an acid residue or a hydrogen acid residue, and R represents a lower alkyl group, and a process for preparing such derivatives. The compounds exhibit both potent antitumor activity and platelet aggregation inhibition activity, and are expected to be useful for the treatment of tumors. The process has good reproducibility and may be effected under moderate conditions, and therefore the process is practically useful. In addition, hydrogen salts of the present compounds have an enhanced stability, which is an advantage in formulating the same into pharmaceutical preparations.
本发明涉及一种通式A的苯并\x9bc!
菲啶衍
生物:##STR1##
其中M和N各自表示羟基或较低的烷氧基,或M和N同时表示氢原子或一起形成亚甲二氧基基团,X.sup.-表示酸残基或氢酸残基,R表示较低的烷基。本发明还涉及一种制备这种衍
生物的方法。这些化合物表现出强大的抗肿瘤活性和血小板聚集抑制活性,并且预计可用于肿瘤治疗。该方法具有良好的重复性,并且可以在温和条件下进行,因此该方法在实际中是有用的。此外,本化合物的氢盐具有增强的稳定性,这是将其制成药物制剂的优点。