Abstract: The invention provides indole-4,7-dione derivatives useful for the treatment of diseases in a mammal, pharmaceutical compositions containing the same and methods of using the same in the treatment of cancer and neoplastic diseases including human solid tumors and other mammalian tumors.

Abstract: The invention provides 19-substituted geldanamycin derivatives, and pharmaceutically acceptable salts thereof that are potent Hsp90 binding agents useful for the treatment of, and/or the amelioration of symptoms of, cancer or neurodegenerative disorders.

Abstract: The invention provides 19-substituted geldanamycin derivatives, and pharmaceutically acceptable salts thereof that are potent Hsp90 binding agents useful for the treatment of, and/or the amelioration of symptoms of, cancer or neurodegenerative disorders.

Abstract: The invention provides 19-substituted geldanamycin derivatives, pharmaceutically acceptable salts thereof and prodrugs thereof that are potent Hsp90 binding agents useful for the treatment of, and/or the amelioration of symptoms of, cancer and other proliferative tissue disorders.

Abstract: The invention provides purified 19-substituted geldanamycin derivatives, pharmaceutically acceptable salts thereof and prodrugs thereof that are potent Hsp90 binding agents that are useful for the treatment and/or the amelioration of symptoms of cancer and other proliferative tissue disorders.

Abstract: The invention provides indole-4,7-dione derivatives useful for the treatment of diseases in a mammal, pharmaceutical compositions containing the same and methods of using the same in the treatment of cancer and neoplastic diseases including human solid tumors and other mammalian tumors.

Abstract: Intermediates of the formula ##STR1## wherein A is methylene, ethylene or propylene which may be substituted by lower alkyl, Y is halogen, R.sup.3 is hydrogen, lower alkyl, aryl or aryl-(lower alkyl)--, R.sup.20 l is lower alkoxy and R.sup.42 is hydrogen, lower alkyl, aryl or aryl-(lower alkyl) or a group of the formula --A--Y in which A and Y are as above, are described.

Abstract: Compounds of the formula ##STR1## wherein A is methylene, ethylene or propylene which may be substituted by lower alkyl, B is carbonyl or methylene, R.sup.1 is halogen, carboxyl, lower alkoxycarbonyl, hydroxyaminocarbonyl, mercapto, lower alkanoylthio or aryl(lower alkylthio)--, R.sup.2 is hydroxy, lower alkoxy or amino, R.sup.3 is hydrogen, lower alkyl, aryl or aryl(lower alkyl)--, R.sup.4 is hydrogen, lower alkyl, aryl, aryl-(lower alkyl)-- or a group of the formula --A-R.sup.1 wherein A and R.sup.1 are as described above and the broken line denotes an optional carbon-carbon bond which can be present only when B is carbonyl,and salts of the acids of formula I with pharmaceutically acceptable bases, a process for the manufacture thereof and pharmaceutical preparations containing same, are described. The compounds of formula I and their salts are useful as antihypertensive agents.

Abstract: The present invention relates to pyridazopyridazine derivatives, a process for the preparation thereof, pharmaceutical preparations containing said derivatives and the use of said derivatives as antihypertensive agents.

Abstract: The present disclosure is directed to 1-substituted or unsubstituted lower alkylene, 5-carboxy, alkanoyloxy or carbamoyloxy triazolopyridazine derivatives, salts of the acids and pharmaceutically-acceptable bases thereof. The triazolopyridazine derivatives provided by the present invention are useful as angiotensin-related antihypertensive agents.