| abstract |
The invention provides compounds of the formulan n wherein R¹ represents lower alkyl, lower cycloalkyl, aryl or lower aralkyl, R² represents hydrogen, aryl or lower alkyl optionally substituted by hydroxy, acyloxy, amino, mono(lower alkyl)amino, di(lower alkyl)amino, carboxy, lower alkoxycarbonyl or aminocarbonyl and m and n stand for 1 or 2, nas well as pharmaceutically acceptable salts of acidic compounds of formula I with bases and of basic compounds of formula I with acids, which are useful in the control or prevention of illnesses, especially in the control or prevention of inflammatory, immunological, oncological, bronchopulmonary, dermatological and cardiovascular disorders, in the treatment of asthma, AIDS or diabetic complications or for the stimulation of hair growth. |