| abstract |
Compounds of formula I <EMI ID=1.1 HE=45 WI=59 LX=792 LY=792 TI=CF> <PC>where R Ü , R Þ and R ý are various optional substituents, R Ú is H, alkyl or alkylaryl, X is CH Þ , O or S, and n is 1, 2 or 3, with the proviso that if X is CH Þ , n is not 1, have potentially valuable pharmaceutical properties for the treatment of cardiovascular disorders such as hypertension and chronic heart failure. Intermediates in their preparation are also novel compounds. |