申请人:Takeda Chemical Industries, Ltd.
公开号:US06329389B1
公开(公告)日:2001-12-11
The present invention provides a compound of the formula:
wherein Ar represents an aromatic group which may be substituted;
X represents methylene, S, SO, SO2 or CO;
Y represents a spacer having a main chain of 2 to 5 atoms;
n represents an integer of 1 to 5;
i) R1 and R2 each represents a hydrogen atom or a lower alkyl which may be substituted,
ii) R1 and R2 form, taken together with the adjacent nitrogen atom, a nitrogen-containing heterocyclic ring which may be substituted, or
iii) R1 or R2 together with —(CH2)n—N═ form, bonded to a component atom of Ring B, a spiro-ring which may be substituted;
Ring A represents an aromatic ring which may be substituted;
Ring B represents a 4- to 7-membered nitrogen-containing non-aromatic ring which may be further substituted by alkyl or acyl,
with a proviso that X represents S, SO, SO2 or CO when Ring A has as a substituent a group represented by the formula:
—NHCOR11
where R11 represents alkyl, alkoxyalkyl, alkylthioalkyl, cycloalkyl, cycloalkylalkyl, aryl, arylalkyl or a group represented by the formula:
—NHR12
where R12 represents alkyl, cycloalkyl, cycloalkylalkyl, aryl or arylalkyl, or a salt thereof; which has an excellent somatostatin receptor binding inhibition action.
本发明提供了一种化合物,其化学式如下:
其中Ar代表可能被取代的芳香基团;
X代表亚甲基、S、SO、SO2或CO;
Y代表具有2到5个原子的主链的间隔物;
n代表1到5的整数;
i)R1和R2分别代表氢原子或可能被取代的较低烷基,
ii)R1和R2与相邻的氮原子一起形成可能被取代的含氮杂环环,或
iii)R1或R2与—(CH2)n—N═一起形成,与环B的一个组分原子结合,可能被取代的螺环;
环A代表可能被取代的芳香环;
环B代表可能被烷基或酰基进一步取代的4到7成员的含氮非芳香环,
但有一个条件是,当环A具有由下式表示的基团作为取代基时:
—NHCOR11
其中R11代表烷基、烷氧基烷基、烷硫基烷基、环烷基、环烷基烷基、芳基、芳基烷基或由下式表示的基团:
—NHR12
其中R12代表烷基、环烷基、环烷基烷基、芳基或芳基烷基,或其盐;具有优异的生长抑素受体结合抑制作用。