A method of inhibiting steroid sulphatase activity in a subject in need of same is described. The method comprises administering to said subject a steroid sulphatase inhibiting amount of a ring system compound; which ring system compound comprises a ring to which is attached a sulphamate group of the formula
1
wherein each of R
1
and R
2
is independently selected from H, alkyl, alkenyl, cycloalkyl and aryl, or together represent allylene optionally containing one or more hetero atoms or groups in the alkylene chain; and wherein said compound is an inhibitor of an enzyme having steroid suiphatase activity (E.C.3.1.6.2); and if the sulphamate group of said compound is replaced with a sulphate group to form a sulphate compound and incubated with a steroid sulphatase enzyme (E.C.3.1.6.2) at a pH 7.4 and 37° C. it would provide a K
m
value of less tha 50 &mgr;M.
本发明描述了一种在有需要的受试者体内抑制类
固醇硫酸酯酶活性的方法。该方法包括向所述受试者施用抑制类
固醇硫酸酯酶量的环状系统化合物;该环状系统化合物包括一个环,在该环上连接有式 1 所示的
氨基磺酸基团。
1
其中每个 R
1
和 R
2
独立地选自 H、烷基、烯基、环烷基和芳基,或共同代表在亚烷基链中可选地含有一个或多个杂原子或基团的烯丙基;其中所述化合物是具有类
固醇胰
脂肪酶活性的酶的
抑制剂(E.C.3.1.6.2)的
抑制剂;如果将所述化合物的
氨基磺酸盐基团替换为
硫酸盐基团以形成
硫酸盐化合物,并与类
固醇硫酸酯酶(E.C.3.1.6.2)在 pH 值为 7.4 和 37° C 的条件下培养,则其 K
m
值小于 50 &mgr;M。