7-Fluoro-dibenzo(b,f)thiepin derivatives, their preparation and resolution, and compositions containing them
申请人:Merck & Co., Inc.
公开号:EP0052912A1
公开(公告)日:1982-06-02
7-Fluoro-dibenzo[b,f]thiepin derivatives of formula:
in which n is 0,1,2,3 or 4; Z is thio, sulfinyl, or sulfonyl; A is 5-tetrazolyl, 3-hydroxy-1,2,5-thiadiazol-4-yl, 4-hydroxy-2,5-dioxo-Δ3-pyrrolin-3-yl, or -CO-R2, where R2 is hydroxy, lower alkyl, lower alkoxy, amino or 2-amino-3-methylthiazoline, or certain substituted amino or lower alkoxy radicals, and the dotted line indicates either an olefinic bond or saturation at the 10,11-position; and the pharmaceutically acceptable salts thereof are novel. They are used in the treatment and control of allergic conditions such as allergic asthma and are made into pharmaceutical compositions for this purpose.
Certain specific derivatives, for example, 7-fluoro- dibenzo-[b,f]thiepin-3-carboxy!ic acid-5-oxides, exist as racemic mixtures and are readily into the respective enantiomers one of which possesses greater bioactivity than the racemic mixture from which it is derived.
The compounds are prepared by a number of suitable methods, including hydrolysis of the corresponding 3-cyano compounds and dehydration of a corresponding 11-alcohol to form the 10,11-unsaturated compound.
式中的 7-氟-二苯并[b,f]硫杂卓衍生物:
其中 n 为 0、1、2、3 或 4;Z 为硫代、亚磺酰基或磺酰基;A是5-四唑基、3-羟基-1,2,5-噻二唑-4-基、4-羟基-2,5-二氧代-Δ3-吡咯啉-3-基,或-CO-R2,其中R2是羟基、低级烷基、低级烷氧基、氨基或2-氨基-3-甲基噻唑啉,或某些取代的氨基或低级烷氧基基,虚线表示烯烃键或在10,11-位的饱和度;其药学上可接受的盐是新颖的。它们可用于治疗和控制过敏性疾病,如过敏性哮喘,并为此制成药物组合物。
某些特定的衍生物,例如 7-氟-二苯并-[b,f]硫杂卓-3-羧酸-5-氧化物,以外消旋混合物的形式存在,并很容易转化为相应的对映体,其中一种对映体的生物活性高于其衍生的外消旋混合物。
这些化合物可通过多种合适的方法制备,包括水解相应的 3-氰基化合物和脱水相应的 11-醇以形成 10,11-不饱和化合物。