Piperidine derivatives and pharmaceutical compositions containing them
申请人:Synthelabo
公开号:US04680296A1
公开(公告)日:1987-07-14
Piperidine derivatives which are compounds of formula (I) ##STR1## wherein Ar.sub.1 and Ar.sub.2 independently represent a phenyl group optionally substituted by a halogen atom, a thienyl group or a pyridinyl group, A represents an alkylene group of 2 to 6 carbon atoms, X represents a CO group or a bond, R.sub.1 represents a hydrogen atom or an alkyl group of 1 to 4 carbon atoms, either R.sub.2 represents a hydrogen atom and R.sub.3 represents a hydrogen atom or a hydroxy group, or R.sub.2 and R.sub.3 together represent a bond, and R.sub.4 represents a hydrogen or halogen atom, or pharmaceutically acceptable acid addition salts thereof are useful as antiallergics and antipruritics.
Novel quinazoline derivatives, comprising in the heterocyclic part of their quinazoline nucleus at least one carbonyl or thiocarbonyl group and a particularly substituted piperidinyl-alkyl side chain, said compounds being potent serotonin-antagonists.
Piperidinylalkyl quinazoline compounds, composition and method of use
申请人:Janssen Pharmaceutica, N.V.
公开号:US04335127A1
公开(公告)日:1982-06-15
Novel quinazoline derivatives, comprising in the heterocyclic part of their quinazoline nucleus at least one carbonyl or thiocarbonyl group and a particularly substituted piperidinyl-alkyl side chain, said compounds being potent serotonin-antagonists.
NITROGENOUS FUSED-RING COMPOUNDS, PROCESS FOR THE PREPARATION OF THE SAME, AND DRUGS
申请人:Takeda Chemical Industries, Ltd.
公开号:EP1026160A1
公开(公告)日:2000-08-09
A compound represented by the formula:
[wherein ring A represents a homocycle optionally having substituents or a nitrogen-containing heterocycle optionally having substituents; D and E are O or S; one of R1 and R2 represents a group represented by the formula:
(wherein Ar1 and Ar2 represent an aromatic group optionally having substituents; Ar1 and Ar2 may form a condensed cyclic group optionally having substituents together with an adjacent carbon atom; ring B represents a nitrogen-containing heterocycle optionally having substituents; X and Y are a bond, O, S(O)p (p is an integer of 0 to 2), NR4 (R4 is H or a lower alkyl group) or a bivalent straight-chained lower hydrocarbon group, which may contain 1 to 3 hetero atoms, optionally having substituents; and R3 represents H, a hydroxy group optionally having substituents or an optionally esterified carboxyl group); and the other is a hydrogen atom, a cyano group or a hydrocarbon group optionally having substituents], or a salt thereof, has an anti-histaminic action, an anti-inflammatory action, eosinophil chemotaxis-inhibiting action, and is useful for preventing or treating asthma, allergic conjunctivitis, allergic rhinitis, urticaria, atopic dermatitis and so on.
式所代表的化合物:
[其中环 A 代表任选具有取代基的均环或任选具有取代基的含氮杂环;D 和 E 为 O 或 S;R1 和 R2 中的一个代表由式表示的基团:
(其中 Ar1 和 Ar2 代表可选择具有取代基的芳香族基团;Ar1 和 Ar2 可与相邻碳原子一起形成可选择具有取代基的缩合环基;环 B 代表可选择具有取代基的含氮杂环;X 和 Y 是键、O、S(O)p(p 是 0 至 2 的整数)、NR4(R4 是 H 或低级烷基)或二价直链低级烃基,其中可包含 1 至 3 个杂原子,可选择具有取代基;和 R3 代表 H、可选择具有取代基的羟基或可选择酯化的羧基);另一个是氢原子、氰基或可选择具有取代基的烃基],或其盐,具有抗组胺作用、抗炎作用、抑制嗜酸性粒细胞趋化作用,可用于预防或治疗哮喘、过敏性结膜炎、过敏性鼻炎、荨麻疹、特应性皮炎等。
(Piperidinylalkyl)quinazoline derivatives, process for their preparation and pharmaceutical compositions containing them