The compounds represented by the formula (I) ##STR1## wherein m is 0, 1 or 2; p is 9, 10, 11, 12 or 13; R.sub.1 ' is hydrogen, ##STR2## and R.sub.2 ' is amino, --NHCH.sub.2 CO.sub.2 R.sub.3 ', ##STR3## --NHCH.sub.2 CONH.sub.2 or --OR.sub.3 ' wherein R.sub.3 ' is an alkyl radical containing one to six carbon atoms with the proviso that when m is 0, R.sub.1 ' is hydrogen are chemical intermediates in the synthesis of leukotriene antagonists of the formula (II) ##STR4## wherein m and p, are described above and R.sub.1 is hydrogen, amino or ##STR5## R.sub.2 is hydroxyl, amino, --NHCH.sub.2 CO.sub.2 H, ##STR6## --NHCH.sub.2 CONH.sub.2 ; and X is ##STR7## --CO.sub.2 H or --CH.sub.2 OH which are useful in the treatment of diseases in which leukotrienes are a factor, such as asthma.
                            式(I)所代表的化合物为:##STR1## 其中,m为0、1或2;p为9、10、11、12或13;R.sub.1'为氢、##STR2## 而R.sub.2'为
氨基、--NHCH.sub.2 CO.sub.2 R.sub.3'、##STR3## --NHCH.sub.2 CONH.sub.2或--OR.sub.3',其中R.sub.3'为含有一至六个碳原子的烷基基团,但当m为0时,R.sub.1'为氢。这些化合物是合成式(II)所示的
白三烯拮抗剂的
化学中间体:##STR4## 其中,m和p与上述相同,而R.sub.1为氢、
氨基或##STR5## 而R.sub.2为羟基、
氨基、--NHCH.sub.2 CO.sub.2 H、##STR6## --NHCH.sub.2 CONH.sub.2,X为##STR7## --CO.sub.2 H或--CH.sub.2 OH,可用于治疗
白三烯是因素的疾病,例如哮喘。