VERFAHREN ZUR HERSTELLUNG VON PROSTAGLANDINANTAGONISTEN

The invention provides 7- and 8-R-dibenzo[b,f]- thiepin derivatives of formula : in which n is O or an integer from 1 to 4; Z is thio, sulfinyl, or sulfonyl; R is hydrogen, halogen, amino, C1-4 alkyl, C1-4 alkanoyl, hydroxyl, C1-4 alkoxy, mercapto, C1-4 alkylthio, C1-4 alkylsulfinyl, C1-4 alkylsulfonyl, trifluoromethyl, trifluoromethylthio, cyano, carboxy, nitro, C1-4 alkylamino or di(C1-4 alkyl)amino; A is 5-tetrazolyl, 3-hydroxy-1,2,5-thiadiazol-4-yl, 4-hydroxy-2,5-dioxy- DELTA -pyrollin-3-yl or where R2 is hydroxy, C1-4alkoxy, N,N-di(C1-4alkyl)amino-(C1-4 alkoxy), C1-4 hydroxyalkoxy, carboxy-(C1-4 alkoxy), amino, C1-4 alkylamino, di(C1-4alkyl)amino, C1-4alkylsulfonylamino, carboxy(C1-4 alkyl)amino, carbamoyl(C1-4 alkyl)amino or 2-imino-3-methylthiazolidine and the dotted line indicates either an olefinic bond or saturation at the 10, 11-position; and the pharmaceutically acceptable salts thereof. These compounds can be used in the treatment and control of allergic conditions such as allergic asthma and pharmaceutical compositions containing the compounds and methods of making the compounds are also provided.