申请人:Beecham Group p.l.c.
公开号:US05157160A1
公开(公告)日:1992-10-20
A compound of formula (I) or a pharmaceutically acceptable salt thereof: ##STR1## in which Z is a heterocyclic group ##STR2## in which Q represents a 3-membered divalent residue completing a 5-membered aromatic ring and comprises one or two heteroatoms selected from oxygen, nitrogen and sulphur, or three nitrogen atoms, any amino nitrogen being substituted by a C.sub.1-2 alkyl, cyclopropyl or propargyl group, and any ring carbon atom being optionally substituted by a group R.sub.1 ; or a group ##STR3## in which A.sub.1, A.sub.2 and A.sub.3 complete a 5-membered aromatic ring and A.sub.1 is oxygen or sulphur, one of A.sub.2 and A.sub.3 is CR.sub.2 and the other is nitrogen or CR.sub.3, or A.sub.2 is oxygen or sulphur, one of A.sub.1 and A.sub.3 is CR.sub.2 and the other is CR.sub.3 ; and R.sub.1, R.sub.2 and R.sub.3 are independently selected from hydrogen, halogen, CN, OR.sub.4, SR.sub.4, N(R.sub.4).sub.2, NHCOR.sub.4, NHCOOCH.sub.3, NHCOOC.sub.2 H.sub.5, NHOR.sub.4, NHNH.sub.2, NO.sub.2, COR.sub.4, COR.sub.5, cyclopropyl, C.sub.2-5 straight chain alkenyl, C.sub.2-5 straight chain alkynyl or C.sub.1-5 straight chain alkyl optionally terminally substituted with OR.sub.4, N(R.sub.4).sub.2, SR.sub.4, CO.sub.2 R.sub.4, CON(R.sub.4).sub.2 or one, two or three halogen atoms, in which each R.sub.4 is independently hydrogen or C.sub.1-3 alkyl and R.sub.5 is OR.sub.4, NH.sub.2 or NHR.sub.4 ; or in which Z is a group --C(R.sub.7).dbd.NR.sub.6 in which R.sub.6 is a group OR.sub.8, where R.sub.8 is C.sub.1-4 alkyl, C.sub.2-4 alkenyl, C.sub.2-4 alkynyl, a group OCOR.sub.9 where R.sub.9 is hydrogen or R.sub.8, or a group NHR.sub.10 or NR.sub.11 R.sub.12 where R.sub.10, R.sub.11 and R.sub.12 are independently C.sub.1-2 alkyl and R.sub.7 is hydrogen or C.sub.1-4 alkyl, subject to the proviso that when R.sub.6 is a group OCOR.sub.9 or NHR.sub.10, R.sub.7 is C.sub.1-4 alkyl. The compounds are potentially useful in the treatment of diseases of the nervous system.
化合物的公式为(I)或其药学上可接受的盐:##STR1##
其中Z是一个杂环基团##STR2##
其中Q代表一个3元的二价残基,完成一个5元芳香环,并包括一个或两个从氧、氮和硫中选择的杂原子,或三个氮原子,任何氨基氮原子被C.sub.1-2烷基、环丙基或丙炔基取代,任何环碳原子被R.sub.1基团取代;或者是一个基团##STR3##
其中A.sub.1、A.sub.2和A.sub.3完成一个5元芳香环,其中A.sub.1为氧或硫,A.sub.2和A.sub.3中的一个为CR.sub.2,另一个为氮或CR.sub.3,或者A.sub.2为氧或硫,A.sub.1和A.sub.3中的一个为CR.sub.2,另一个为CR.sub.3;R.sub.1、R.sub.2和R.sub.3独立地选择自氢、卤素、CN、OR.sub.4、SR.sub.4、N(R.sub.4).sub.2、NHCOR.sub.4、NHCOOCH.sub.3、NHCOOC.sub.2 H.sub.5、NHOR.sub.4、NHNH.sub.2、NO.sub.2、COR.sub.4、COR.sub.5、环丙基、C.sub.2-5直链烯基、C.sub.2-5直链炔基或C.sub.1-5直链烷基,可选择地末端取代为OR.sub.4、N(R.sub.4).sub.2、SR.sub.4、CO.sub.2 R.sub.4、CON(R.sub.4).sub.2或一个、两个或三个卤素原子,其中每个R.sub.4独立地是氢或C.sub.1-3烷基,R.sub.5是OR.sub.4、NH.sub.2或NHR.sub.4;或者Z是一个基团--C(R.sub.7).dbd.NR.sub.6,其中R.sub.6是一个基团OR.sub.8,其中R.sub.8是C.sub.1-4烷基、C.sub.2-4烯基、C.sub.2-4炔基、一个OCOR.sub.9基团,其中R.sub.9是氢或R.sub.8,或者一个NHR.sub.10或NR.sub.11R.sub.12基团,其中R.sub.10、R.sub.11和R.sub.12独立地是C.sub.1-2烷基,R.sub.7是氢或C.sub.1-4烷基,但当R.sub.6是OCOR.sub.9或NHR.sub.10时,R.sub.7是C.sub.1-4烷基。这些化合物在治疗神经系统疾病方面具有潜在的用途。