| abstract |
Therapeutically active compositions of matter and member species thereof are described which comprise indazole-containing compounds, said compounds and their therapeutic activity resulting directly from an indazole-for-catechol bioisostere replacement of a catechol-containing compound having the same therapeutic activity, where non-catechol substituents are the same or homologous before and after said replacement, and wherein said compositions of matter comprise a compound of Formula (I1) or (I2):or a pharmaceutically acceptable salt thereof, wherein in a preferred embodiment RC is hydrogen; RA is cyclohexyl; and RB is ethyl. Ra and Rb are each individually and independently hydrogen or non-catechol substituents of said compounds resulting directly from an indazole-for-catechol bioisostere replacement of said catechol-containing compound having said therapeutic activity, where said non-catechol substituents are the same or homologous before and after said replacement, provided that both of Ra and Rb cannot be hydrogen at the same time. The therapeutic activity involved may comprise cholinesterase inhibitory activity, adrenergic alpha1-antagonist and beta1-agonist activity, calcium channel inhibitory activity, antineoplastic activity, and phosphodiesterase type IV inhibitory activity. |