A novel bicyclooctane derivative represented by the formula: ##STR1## wherein R.sub.1 is hydrogen or C.sub.1-4 alkyl, X is ethylene or vinylene, and Y.sub.1 and Y.sub.2 are independently hydrogen or a hydroxyl-protecting group, or a pharmaceutically acceptable salt of said compound in which R.sub.1 is hydrogen. Said compound and pharmaceutically acceptable salt are chemically stable, have platelet anti-aggregation activity without undesirable pharmacological actions and exhibit the duration of high biological activity.
一种由以下公式表示的新型双
环辛烷衍
生物:其中R.sub.1为氢或C.sub.1-4烷基,X为
乙烯或
乙烯基,Y.sub.1和Y.sub.2分别为氢或羟基保护基,或者其中R.sub.1为氢时的该化合物的药学上可接受的盐。所述化合物和药学上可接受的盐在
化学上稳定,具有血小板抗聚集活性而没有不良的药理作用,并表现出高
生物活性的持续时间。