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.
本发明涉及公式##STR1##的化合物,其中*B是##STR2##,Y是O或S,*A是*--(CH.sub.2).sub.n --(X).sub.m --(CH.sub.2).sub.r --,n或r独立地是0到3的整数,m是0到1的整数,但当m为1时,n必须至少为1,X是O或S,R.sub.1和R.sub.4独立地是氢,低烷基,羟基或低烷氧基,但当*B不是##STR3##时,R.sub.1和R.sub.4中至少有一个,以及R.sub.6和R.sub.7中的一个必须是氢,R.sub.2和R.sub.3独立地是氢,低烷基,环烷基,卤素,硝基,低烷氧基,低烯基,低炔基或芳基,R.sub.5和R.sub.6独立地是氢或低烷基,R.sub.7是氢,低烷基,环烷基或芳基,Het是单环5-或6-成员杂环芳基或含有一个或两个从氮氧和硫中选择的杂原子的双环杂芳基基团,该基团可以被低烷基,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,它们的对映体和混合物的酰酸盐,以及药物可接受的酸加成盐。公式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,皮肤疾病,移植排斥,免疫性疾病和炎症状况的药物。