申请人:Hoffmann-La Roche Inc.
公开号:US04916145A1
公开(公告)日:1990-04-10
The invention relates to compounds of the formula ##STR1## wherein *B is ##STR2## Y is O or S, *A is *--(CH.sub.2).sub.n --(X).sub.m --(CH.sub.2).sub.r --, n or r, independently, are integers from 0 to 3, m is an integer from 0 to 1, provided that when m is 1, then n must be at least 1, X is O or S, R.sub.1 and R.sub.4, independently, are hydrogen, lower alkyl, hydroxy or lower alkoxy, provided that when *B is other than ##STR3## at least one of R.sub.1 and R.sub.4, and one of R.sub.6 and R.sub.7 must be hydrogen, R.sub.2 and R.sub.3 are independently hydrogen, lower alkyl, cycloalkyl, halogen, nitro, lower alkoxy, lower alkenyl, lower alkynyl or aryl, R.sub.5 and R.sub.6, independently are hydrogen or lower alkyl, R.sub.7 is hydrogen, lower alkyl, cycloalkyl or aryl, Het is a monocyclic 5- or 6-membered hetero aromatic or a bicyclic heteroaromatic radical containing one or two hetero atoms selected from nitrogen oxygen and sulfur, which radical may be substituted by lower alkyl, halogen or aryl, and the asterisk denotes the point of attachment, and when R.sub.6 and R.sub.7 are different, their enantiomers and racemic mixtures thereof, and pharmaceutical acceptable acid addition salts thereof. The compounds of formula I exhibit activity as Platelet Activating Factor (PAF) antagonists and are, therefore, useful as agents for the prevention and treatment of vascular diseases, pulmonary diseases, dermatological disorders, transplant rejection, immunological disorders and inflammatory conditions.
该发明涉及以下式的化合物##STR1##其中*B为##STR2##Y为O或S,*A为*--(CH.sub.2).sub.n --(X).sub.m --(CH.sub.2).sub.r --,n或r独立地为0到3的整数,m为0到1的整数,但当m为1时,n必须至少为1,X为O或S,R.sub.1和R.sub.4独立地为氢、较低的烷基、羟基或较低的烷氧基,但当*B不是##STR3##时,R.sub.1和R.sub.4中至少一个,以及R.sub.6和R.sub.7中的一个必须为氢,R.sub.2和R.sub.3独立地为氢、较低的烷基、环烷基、卤素、硝基、较低的烷氧基、较低的烯基、较低的炔基或芳基,R.sub.5和R.sub.6独立地为氢或较低的烷基,R.sub.7为氢、较低的烷基、环烷基或芳基,Het为含有一或两个异原子(从氮、氧和硫中选择)的单环5-或6-成员杂芳基或含有一个或两个异原子的双环杂芳基,该基团可以被较低的烷基、卤素或芳基取代,星号表示连接点,当R.sub.6和R.sub.7不同时,它们的对映异构体和外消旋混合物,以及其药学上可接受的酸盐。式I的化合物表现为血小板活化因子(PAF)拮抗剂的活性,因此,它们可用作预防和治疗血管疾病、肺部疾病、皮肤病、移植排斥、免疫紊乱和炎症症状的药物。