Antisecretory guanidine derivatives, processes for their manufacture and pharmaceutical compositions containing them
申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0010418A1
公开(公告)日:1980-04-30
Guanidine derivatives of the formula:-
in which Y1 and Y2 are O, S, direct bonds, CH2 or SO; m and p are 0 to 4, n and g are 1 to 4, provided that when Y1 orY2 is 0, S or SO, m or p is 1 to 4 and provided that when Y1 or Y2 is 0 or SO, n or g is 2 to 4; one of R' and R2 is hydrogen and the other is hydrogen or C(1-6) alkyl; A is e.g. 3,4-dioxocyclobuten-1, 2-diyl or C=Z in which Z is S, 0, NCN, NN02, CHN02, NCONH2, C(CN)2 or NH;
Het1 is cayzol-4-yl, thiazol-4-yl or imidazol-4-yl substituted in the 2-position by:-
or Het1 is 1,2,4-thiadiazol-3-yl or 1,2,4-oxadiazol-3-yl substituted in the 5-position by radical III in which R5 is hydrogen, C(1-10)alkyl, C(1-6)alkanoyl or C(7-11)aroyl; Het2 is e.g. same as Het1 or an optionally substituted unfusedN-containing 5- or 6- membered monocyclic heterocyclic ring; provided that when R1 and R2 are hydrogen and A is C =NH, Y1 and/orY2 is S, and that when R1 and R2 are hydrogen, A is C=NH and Het2 is imidazole, the number of atoms in the chain:-
is at least 4; and salts thereof. The process of manufacture of said compounds is described; e.g. 2-guanidino-4[(2-aminoethyl)-thiomethyl]thiazole gives by reaction with carbon disulphide 1,3-bis[2- (2-guanidino-thiazol-4- ylmethyl- thio)ethyl]-thiourea.
式中的
胍衍
生物: -
其中 Y1 和 Y2 为 O、S、直接键、
CH2 或 SO;m 和 p 为 0 至 4,n 和 g 为 1 至 4,条件是当 Y1 或 Y2 为 0、S 或 SO 时,m 或 p 为 1 至 4,条件是当 Y1 或 Y2 为 0 或 SO 时,n 或 g 为 2 至 4;R'和 R2 中的一个为氢,另一个为氢或 C(1-6)烷基;A 为 e.C.或 E.C.,条件是当 Y1 或 Y2 为 0 或 SO 时,m 或 p 为 1 至 4,条件是当 Y1 或 Y2 为 0 或 SO 时,n 或 g 为 2 至 4。g.3,4-二氧代
环丁烯-1,2-二基或 C=Z 其中 Z 是 S、0、NCN、NN02、CHN02、NCONH2、C(CN)2 或 NH;
Het1 是在 2 位被以下取代的开唑-4-基、
噻唑-4-基或
咪唑-4-基:-
或 Het1 是在 5 位被基 III 取代的
1,2,4-噻二唑-3-基或
1,2,4-恶二唑-3-基,其中 R5 是氢、C(1-10)烷基、C(1-6)烷酰基或 C(7-11)芳基; Het2 例如与 Het1 相同,或任选取代的含未融合 N 的 5 或 6 成员单环杂环;条件是当 R1 和 R2 为氢且 A 为 C=NH 时,Y1 和/或 Y2 为 S,以及当 R1 和 R2 为氢、A 为 C=NH 且 Het2 为
咪唑时,链中的原子数:- 1.
及其盐类。描述了上述化合物的制造过程;例如,2-
胍基-4[(2-
氨基乙基)-噻甲基]
噻唑与
二硫化碳反应生成 1,3-双[2-(2-
胍基-
噻唑-4-甲基-
硫)乙基]-
硫脲。