Histamine H2 receptor antagonists of the benzisothiazole amino and benzthiadiazine amino series
申请人:BEECHAM GROUP PLC
公开号:EP0105732A2
公开(公告)日:1984-04-18
Compounds of formula (I), or a pharmaceutically acceptable salt, quaternised derivative, N-oxide or solvate thereof:
wherein:
R1 is hydrogen, halogen, hydroxy, C1-4 alkyl, C1-4 alkoxy, or amino or guanidino, the or any amino moiety being optionally substituted by one or two C1-4 alkyl optionally substituted by halogen, or an aminomethylene group of formula (a),
in which R2 and R3 are the same or different and are hydrogen, C1-4 alkyl, C3-6 cycloalkyl, C3-6 cycloalkyl-C1-4 alkyl or phenyl C1-4 alkyl, or R2 and R3 together with the nitrogen atom to which they are attached are morpholino, pyrrolidino or piperidino;
Ar is furandiyl, thiophendiyl, phenylene, pyridinediyl, pyrimidinediyl, thiazolediyl, thiadiazolediyl or imidazolediyl;
a is 0 or an integer 1 or 2;
b is an integer from 2 to 5; and
Het is a bicyclic heteroaryl group of formula (b) or (c),
in which R4 and R5 are the same or different and are hydrogen, halogen, C1-5 alkyl, trifluoromethyl, nitro, cyano, hydroxy, C1-5 alkoxy, C1-5 alkylthio, carboxy, amino, aminocarbonyl, aminocarbonylamino, amino-thiocarbonylamino, aminosulphonyl, C1-5 alkylsulphonyl, C1-6 alkylsulphinyl, C1-5 alkylsulphonylamino, C1-6 alkyluslphinylamino, phenylsulphonyl, phenylsulphinyl or are a group of formula (d) or (e),
in which R9 is hydrogen, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylthio, phenyl, phenoxy or phenylthio, Y is oxygen or sulphur and Z is oxygen, sulphur or N-R10, R10 being hydrogen or C1-5 alkyl, the C1-6 alkyl group or the C1-6 alkyl moiety of any of the foregoing C1-6 alkyl-containing groups for R4 and R5 being optionally substituted by phenyl, the amino group or the amino moiety of any of the foregoing amino-containing groups for R4 and R5 being optionally substituted by one or two C1-6 alkyl, phenyl or phenyl-C1-4 alkyl or optionally N-disubstituted by C4-5 polymethylene, and the phenyl moity of any of the foregoing phenyl-containing groups for R4 and R5 being optionally substituted by C1-6 alkyl, C1-6 alkoxy, halogen, nitro or trifluoromethyl, one of Rs and Rs is hydrogen, C1-6 alkyl, C1-6 alkanoyl, C1-6 alkylsulphonyl, C1-6 alkoxycarbonyl or phenoxycarbonyl, benzyloxycarbonyl, phenyl, phenylsulphonyl or phenyl C1-4 alkyl, the phenyl moiety being optionally substituted by benzoyl, C1-6 alkyl, C1-4 alkoxy, halogen, nitro or trifluoromethyl, and the other of R6 and R8 together with R7 is a bond, and n is O or an integer 1 or 2.
式 (I) 化合物或其药学上可接受的盐、季铵盐衍生物、N-氧化物或溶液:
其中
R1 是氢、卤素、羟基、C1-4 烷基、C1-4 烷氧基或氨基或胍基,其中或任何氨基可任选被一个或两个任选被卤素取代的 C1-4 烷基或式(a)的氨基亚甲基取代、
其中 R2 和 R3 相同或不同,且为氢、C1-4 烷基、C3-6 环烷基、C3-6 环烷基-C1-4 烷基或苯基 C1-4 烷基,或 R2 和 R3 连同其所连接的氮原子为吗啉基、吡咯烷基或哌啶基;
Ar 是呋喃二基、噻吩二基、亚苯基、吡啶二基、嘧啶二基、噻唑二基、噻二唑二基或咪唑二基;
a 是 0 或整数 1 或 2;
b 是 2 至 5 的整数;以及
Het 是式 (b) 或 (c) 的双环杂芳基、
其中 R4 和 R5 相同或不同,并且是氢、卤素、C1-5 烷基、三氟甲基、硝基、氰基、羟基、C1-5 烷氧基、C1-5 烷硫基、羧基、氨基、氨基羰基、氨基羰基氨基、氨基-硫代羰基氨基、氨基-硫代羰基氨基、氨磺酰,C1-5 烷基磺酰基,C1-6 烷基亚磺酰基,C1-5 烷基亚磺酰氨基,C1-6 烷基亚磺酰氨基,苯基磺酰基,苯基亚磺酰基或为式 (d) 或 (e) 的基团、
其中 R9 是氢、C1-6 烷基、C1-6 烷氧基、C1-6 烷硫基、苯基、苯氧基或苯硫基,Y 是氧或硫,Z 是氧、硫或 N-R10,R10 是氢或 C1-5 烷基,R4 和 R5 的 C1-6 烷基或前述任何含 C1-6 烷基的基团的 C1-6 烷基分子可选择被苯基取代、R4 和 R5 的氨基或前述任何含氨基基团的氨基基团可选择被一个或两个 C1-6 烷基、苯基或苯基-C1-4 烷基取代,或可选择被 C4-5 聚亚甲基 N-二取代、以及 R4 和 R5 的任何前述含苯基的基团的苯基可选被 C1-6 烷基、C1-6 烷氧基、卤素、硝基或三氟甲基取代,Rs 和 Rs 中的一个为氢、C1-6 烷基、C1-6 烷酰基、C1-6 烷基磺酰基、C1-6 烷氧羰基或苯氧羰基、苄氧羰基、苯基、苯磺酰基或苯基 C1-4 烷基,苯基可任选被苯甲酰基、C1-6 烷基、C1-4 烷氧基、卤素、硝基或三氟甲基取代,R6 和 R8 中的另一个与 R7 一起为键,n 为 O 或 1 或 2 的整数。