Compounds of the formula and their pharmaceutically acceptable acid addition salts ##STR1## wherein X is lower alkoxy, Cl, Br, or F; R is ##STR2## or --C.tbd.C--R.sub.4 ; R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are independently selected from hydrogen and methyl; n is an integer from 1 to 3 provided that when n is 3 at least two of R.sub.1, R.sub.2 and R.sub.3 are hydrogen and R.sub.4 is hydrogen, and further provided that when n is 2 at least one of R.sub.1, R.sub.2 and R.sub.3 is hydrogen; are disclosed. These compounds possess useful pharmaceutical activities due to their ability to inhibit the prostaglandin-inactivating enzyme 15-.alpha.-hydroxyprostaglandin dehydrogenase.
该式化合物及其药学上可接受的酸盐包括:##STR1## 其中X是低烷氧基、
氯、
溴或
氟;R是##STR2## 或--C.tbd.C--R.sub.4; R.sub.1、R.sub.2、R.sub.3和R.sub.4独立选择氢和甲基;n是1到3的整数,当n为3时,至少有两个R.sub.1、R.sub.2和R.sub.3为氢,R.sub.4为氢;当n为2时,至少有一个R.sub.1、R.sub.2和R.sub.3为氢。这些化合物具有有用的药理活性,因为它们能够抑制
前列腺素失活酶15-α-羟基
前列腺素脱氢酶。