Abstract: The present invention provides N-phenylpiperazine derivatives for use as multiple binders and/or antagonists of ?1A adrenoceptors, ?1D adrenoceptors and 5-HT1A serotonin receptors. These substances are candidates to prototypes for the treatment of benign prostate hyperplasia and lower urinary tract symptoms, and are useful in pharmaceutical compositions.

Abstract: The present invention describes phenylpiperazinyl alpha adrenergic antagonists that corresponds to the formula (I) which selectively act on the alpha 1A/alpha 1D subtypes, where its selectivity index in comparison to alpha 1B subtype is, at minimum, 1700 for the alpha 1A subtype and 10000 for the alpha 1D subtype, being therefore useful for the treatment of the lower urinary tract symptoms, including the benign prostatic hyperplasia treatment in mammals, preferentially humans. Also described are pharmaceutical compositions containing said compounds and methods for its preparation.

Abstract: The invention discloses a compound having the formula (I) wherein R1 is selected from the group consisting of hydrogen, alkyl of 1 to 6 carbon atoms, unsubstituted phenyl, and substituted phenyl; R2 is selected from the group consisting of H, alkene, un-substituted phenol, and substituted phenyl; and pharmaceutically acceptable salts thereof, having digitalis-like properties. The invention further discloses a novel method to synthesize 3,4-methylenedioxybenzoyl-2-thienylhydrazone (LASSBio-294). LASSBio-294 produces positive inotropic effect on cardiac and skeletal muscle. The invention is useful for the treatment of congestive heart failure and muscle fatigue. It lacks toxic effects seen in digitalis glycosides.