申请人:SmithKline Beecham Corporation
公开号:US05693857A1
公开(公告)日:1997-12-02
##STR1## This invention relates to intermediate compounds of formula (VI), wherein: R.sub.1 is (L).sub.a --(CH.sub.2).sub.b --(T).sub.c --B; a is 0 or 1; b is 3 to 14; c is 0 or 1; L and T are independently sulfur, oxygen, CH.dbd.CH, C.tbd.C, or CH.sub.2 ; B is H, C.sub.1-4 alkyl, ethynyl, trifluoromethyl, isopropenyl, furanyl, thienyl, cyclohexyl or phenyl unsubstituted or monosubstituted by Br, Cl, CF.sub.3, C.sub.1-4 alkoxy, C.sub.1-4 alkyl, methylthio or trifluoromethylthio; R.sub.2 and A are independently selected from H, CF.sub.3, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, F, Cl, Br, I, OH, NO.sub.2 or NH.sub.2 ; or, when R.sub.1 and A are H, R.sub.2 is (L).sub.a --(CH.sub.2).sub.b --(T).sub.c --B wherein a, b, c, L, T and B are as defined above; and M is H, Li, Na, K, NH.sub.4 or an organic ammonium cation, and their use in a process for preparing leukotriene antagonists.
本发明涉及公式(VI)的中间化合物,其中:R.sub.1是(L).sub.a --(CH.sub.2).sub.b --(T).sub.c --B;a为0或1;b为3至14;c为0或1;L和T分别为硫、氧、CH.dbd.CH、C.tbd.C或CH.sub.2;B为H、C.sub.1-4烷基、乙炔基、三氟甲基、异丙烯基、呋喃基、噻吩基、环己基或苯基,未取代或经Br、Cl、CF.sub.3、C.sub.1-4烷氧基、C.sub.1-4烷基、甲硫氧基或三氟甲基硫氧基单取代;R.sub.2和A分别选自H、CF.sub.3、C.sub.1-4烷基、C.sub.1-4烷氧基、F、Cl、Br、I、OH、NO.sub.2或NH.sub.2;或当R.sub.1和A为H时,R.sub.2为(L).sub.a --(CH.sub.2).sub.b --(T).sub.c --B,其中a、b、c、L、T和B如上定义;M为H、Li、Na、K、NH.sub.4或有机铵阳离子,并且它们在制备白三烯拮抗剂的过程中的用途。