| 摘要 |
<p>Provided are pyridothienopyridazine compounds of the formula < IMG > wherein R1 is alkyl, alkenyl, alkynyl, halogen, nitro, cyano, carboxy, carboxyalkyl, carbalkoxy, alkanoyl, trihalomethyl, aryl, aralkyl, mercapto, mercaptoalkyl, alkylmercapto, hydroxy, hydroxyalkyl, alkoxy, acyloxy, amino, aminoalkyl, alkylamino, sulfinyl, sulfonyl or methylenedioxy, m is an integer from 0 to 2 inclusive; n is an integer from 0 to 3 inclusive; R2 and R3 are independently hydrogen, alkyl, alkenyl, alkynyl, hydroxy, hydroxyalkyl, alkoxy, acyloxy, halogen, amino, aminoalkyl, alkylamino, alkanoylamino, mercapto, mercaptoalkyl, alkylmercapto, carboxy, carbalkoxy, alkylsulfinyl, alkylsulfonyl, arylsulfinyl or arylsulfonyl. These compounds have anti-allergy activity.</p> |
