Abstract: The present invention relates to the compounds 3 -(benzo[d][1,3]dioxol-5-yl)-7-(1-hydroxypropan-2-yl)-1-(1H -indol-3-yl)-6,7-dihydro-3H-oxazol[3,4-a]pyrazine-5,8-dione of formula (I)), and also to pharmaceutically acceptable stereoisomers, salts, solvates, hydrates, prodrugs and esters thereof; the stereoisomers being in their separate individual forms and/or in the forms of racemic mixtures or non-racemic mixtures with diastereomeric excess in any proportions, a pharmaceutical composition comprising at least one of the compounds described; the use of said stereoisomers as an antitumor agent or phosphodiesterase enzyme inhibitor, and the use of said stereoisomers in the treatment of benign prostatic hyperplasia and cancer, more specifically prostate cancer.

Abstract: The present invention relates to novel derivatives of 6,7-dihydro-3H-oxazolo[3,4-a]pyrazine-5,8-dione represented by formula (I): and a mixture of these derivatives. The present invention also encompasses the pharmaceutical compositions comprising an effective amount of a said compounds, object of the present invention, as well as to the use of the compounds and/or derivatives as a phosphodiesterase enzyme inhibitor, and the use of the compounds and/or derivatives in the treatment of erectile dysfunction, disorders and/or conditions treatable with relaxation of tissues and disorders treatable with phosphodiesterase inhibitors, more particularly PDE-5 inhibitor. A further objective of the present invention is to provide a medication comprising a therapeutically effective amount of said compound and a method of treating using the said novel compounds.

Abstract: The present invention relates to novel derivatives of 6,7-dihydro-3H-oxazolo[3,4-a]pyrazine-5,8-dione, a mixture of these derivatives. The present invention also encompasses the pharmaceutical compositions comprising an effective amount of a said compounds, object of the present invention, as well as to the use of the compounds and/or derivatives as a phosphodiesterase enzyme inhibitor, and the use of the compounds and/or derivatives in the treatment of erectile dysfunction, disorders and/or conditions treatable with relaxation of tissues and disorders treatable with phosphodiesterase inhibitors, more particularly PDE-5 inhibitor. A further objective of the present invention is to provide a medication comprising a therapeutically effective amount of said compound and a method of treating using the said novel compounds.

Abstract: This invention describes new antifungal compounds that are aralkyl benzyl ethers of the formula (I): where Ar represents aryl, imidazolil, 1,2,4-triazolyl, benzimidazolil; R1, R2, R4 and R5 are independently hydrogen, halogen, C1-6 alkyl; R3 represents halogen, C1-6alkyl or O—R? where R? represents hydrogen or lower alkyl; R6 represents aryl, substituted aryl, trifluoromethyl, trichloromethyl or O—R? where R? represents hydrogen or lower alkyl; being the substituents of the aryl a halogen or a radical tetrazolyl; n and m represent independently an integer between 0 and 5; With the proviso that when Ar is imidazolil, R3 is chlorine, R6 is p-phenyl and R1, R2, R4 and R5 are hydrogen, n must be different from 2. When n and m are not 0 and 1, R3 or R6 can be represented by substituents not necessarily equal.

Abstract: A series of derivatives of 6,7-dihydro-3H-oxazolo[3,4-a]pyrazine-5,8-dione, mixtures thereof, their pharmaceutically acceptable salts, which are inhibitors of PDE-5, possessing vasodilatator properties and relaxing effects. In particular, compounds of formula (I), where R1, R2, R3, and R4 are defined herein, processes for the preparation of said compounds, pharmaceutical compositions containing them, as well as uses as inhibitors of the enzyme phosphodiesterase type 5 (PDE-5) in the treatment of the erectile dysfunction and PDE-5 inhibitor treatable disorders.

Abstract: The present invention describes a series of derivatives of 2-(3-methylenedioxy)-benzoyl indol, their mixtures, their pharmaceutically acceptable salts, their enantiomers, pharmaceutical compositions comprising them, processes for preparing them, use in the prophylactic and/or curative treatment of sexual dysfunction. More specifically, the invention describes derivatives (R)-3-((2-(benzo[d][1,3]dioxol-5-carbonyl)-1H-indol-3-yl)methyl)-1-methylpiperazine-2,5-dione, and S)-3-((2-(benzo[d][1,3]dioxol-5-carbonyl)-1H-indol-3-yl)methyl)-1-methylpiperazine-2,5-dione.

Abstract: This invention describes new antifungal compounds that are aralkyl benzyl ethers of the formula (I): wherein: Ar represents aryl, imidazolil, 1,2,4-triazolyl, benzimidazolil; R1, R2, R4 and R5 are independently hydrogen, halogen, C1-6 alkyl; R3 represents halogen, C1-6alkyl or O—R? where R? represents hydrogen or lower alkyl; R6 represents aryl, substituted aryl, trifluoromethyl, trichloromethyl or O—R? where R? represents hydrogen or lower alkyl; being the substituents of the aryl a halogen or a radical tetrazolyl; n and m represent independently an integer between 0 and 5; With the proviso that when Ar is imidazolil, R3 is chlorine, R6 is p-phenyl and R1, R2, R4 and R5 are hydrogen, n must be different from 2. When n and m are not 0 and 1, R3 or R6 can be represented by substituents not necessarily equal.

Abstract: The present invention describes a series of derivatives of 6,7-dihydro-3H-oxazolo[3,4-a]pyrazine-5,8-dione, mixtures thereof, their pharmaceutically acceptable salts, which are inhibitors of PDE-5, possessing vasodilatator properties and relaxing effects. In particular, the derivative (R)-3-(1,3-benzodioxol-5-yl)-1-(1H-indol-3-yl)-7-methyl-6,7-dihydro[1,3]oxazolo[3,4-a]pyrazine-5,8-dione, its enantiomer (S)-3-(1,3-benzodioxol-5-yl)-1-(1H-indol-3-yl)-7-methyl-6,7-dihydro[1,3]oxazolo[3,4-a]pyrazine-5,8-dione. The present invention describes, additionally, processes for the preparation of said compounds, pharmaceutical compositions containing them, thereof, as well as uses as inhibitors of the enzyme phosphodiesterase type 5 (PDE-5) in the treatment of the erectile dysfunction and PDE-5 inhibitor treatable disorders.

Abstract: The present invention describes a series of derivatives of 2-(3-methylenedioxy)-benzoyl indol, their mixtures, their pharmaceutically acceptable salts, their enantiomers, pharmaceutical compositions comprising them, processes for preparing them, use in the prophylactic and/or curative treatment of sexual dysfunction. More specifically, the invention describes derivatives (R)-3-((2-(benzo[d][1,3]dioxol-5-carbonyl)-1H-indol-3-yl)methyl)-1-methylpiperazine-2,5-dione, and S)-3-((2-(benzo[d][1,3]dioxol-5-carbonyl)-1H-indol-3-yl)methyl)-1-methylpiperazine-2,5-dione.