A method for controlling estrogen production comprising administering a ring system compound comprising a sulphamic acid ester group; wherein said compound is an inhibitor of an enzyme having steroid sulphatase activity (EC 3.1.6.2); and wherein if the sulphamic acid ester group of said compound is replaced with a sulphate group to form a sulphate compound and incubated with a steroid sulphatase enzyme (EC 3.1.6.2) at a pH 7.4 and 37° C. it provides a K
m
value of less than 50 &mgr;M. A method to target the estrogen metabolic pathway comprising administering a ring system compound comprising a sulphamic acid ester group; wherein said compound is an inhibitor of an enzyme having steroid sulphatase activity (EC 3.1.6.2); and wherein if the sulphamic acid ester group of said compound is replaced with a sulphate group to form a sulphate compound and incubated with a steroid sulphatase enzyme (EC 3.1.6.2) at a pH 7.4 and 37° C. it provides a K
m
value of less than 50 &mgr;M.
一种控制
雌激素产生的方法,包括给予一种含有磺酰胺酸酯基团的环系统化合物;其中所述化合物是一种对具有类
固醇硫酸酶活性(
EC 3.1.6.2)的酶具有抑制作用的化合物;并且如果将所述化合物的磺酰胺酸酯基团替换为
硫酸酯基团以形成
硫酸酯化合物,并在pH 7.4和37°C条件下与类
固醇硫酸酶酶(
EC 3.1.6.2)培养,则其提供的Km值小于50µM。一种靶向
雌激素代谢途径的方法,包括给予一种含有磺酰胺酸酯基团的环系统化合物;其中所述化合物是一种对具有类
固醇硫酸酶活性(
EC 3.1.6.2)的酶具有抑制作用的化合物;并且如果将所述化合物的磺酰胺酸酯基团替换为
硫酸酯基团以形成
硫酸酯化合物,并在pH 7.4和37°C条件下与类
固醇硫酸酶酶(
EC 3.1.6.2)培养,则其提供的Km值小于50µM。