Abstract: The present invention relates to compound of Formula I, II, III, or IV, and/or a pharmaceutical acceptable addition salt thereof and/or a stereoisomer thereof and/or a solvate thereof, wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R11, and R12 are as defined in the claim 1 or as described in detail in the description of the invention, and to the use of said compounds to treat or prevent viral infections and their use to manufacture a medicine to treat or prevent viral infections, particularly infections with RNA-viruses belonging to the family of the Retroviridae, the family of the Flaviviridae and the family of the Picornaviridae and more preferably infections with Human Immunodeficiency Virus 1 (HIV1), Human Immunodeficiency Virus 2 (HIV2), Hepatitis C virus (HCV), Dengue virus, and enteroviruses like Coxsackievirus, Rhinovirus and Poliovirus.

Abstract: The invention is directed to a process for the preparation of substituted threonolactone and substituted threose compounds which are intermediates in the synthesis of phosphonate nucleosides being useful antiviral agents.

Abstract: The present invention relates to compound of Formula I, II, III, or IV, and/or a pharmaceutical acceptable addition salt thereof and/or a stereoisomer thereof and/or a solvate thereof, wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R11, and R12 are as defined in the claim 1 or as described in detail in the description of the invention, and to the use of said compounds to treat or prevent viral infections and their use to manufacture a medicine to treat or prevent viral infections, particularly infections with RNA-viruses belonging to the family of the Retroviridae, the family of the Flaviviridae and the family of the Picornaviridae and more preferably infections with Human Immunodeficiency Virus 1 (HIV1), Human Immunodeficiency Virus 2 (HN2), Hepatitis C virus (HCV), Dengue virus, and enteroviruses like Coxsackievirus, Rhinovirus and Poliovirus. The present invention also relates to pharmaceutical compositions of said compounds and the use of said pharmaceutical compositions to treat or prevent viral infections.

Abstract: The invention is directed to processes of preparing phosphonate nucleosides comprising a phosphonalkoxy-substituted five-membered, saturated or unsaturated, oxygen-containing ring coupled to a heterocyclic nucleobase such as a pyrimidine or purine base.

Abstract: The invention is directed to processes of preparing phosphonate nucleosides comprising a phosphonalkoxy-substituted five-membered, saturated or unsaturated, oxygen-containing ring coupled to a heterocyclic nucleobase such as a pyrimidine or purine base.

Abstract: The present invention relates to compound of Formula I, II, III, or IV, and/or a pharmaceutical acceptable addition salt thereof and/or a stereoisomer thereof and/or a solvate thereof, wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R11, and R12 are as defined in the claim 1 or as described in detail in the description of the invention, and to the use of said compounds to treat or prevent viral infections and their use to manufacture a medicine to treat or prevent viral infections, particularly infections with RNA-viruses belonging to the family of the Retroviridae, the family of the Flaviviridae and the family of the Picornaviridae and more preferably infections with Human Immunodeficiency Virus 1 (HIV1), Human Immunodeficiency Virus 2 (HIV2), Hepatitis C virus (HCV), Dengue virus, and enteroviruses like Coxsackievirus, Rhinovirus and Poliovirus.

Abstract: The invention is directed to processes of preparing phosphonate nucleosides comprising a phosphonalkoxy-substituted five-membered, saturated or unsaturated, oxygen-containing ring coupled to a heterocyclic nucleobase such as a pyrimidine or purine base.

Abstract: The invention is directed to processes of preparing phosphonate nucleosides comprising a phosphonalkoxy-substituted five-membered, saturated or unsaturated, oxygen-containing ring coupled to a heterocyclic nucleobase such as a pyrimidine or purine base.

Abstract: The invention is directed to processes of preparing phosphonate nucleosides comprising a phosphonalkoxy-substituted five-membered, saturated or unsaturated, oxygen-containing ring coupled to a heterocyclic nucleobase such as a pyrimidine or purine base.

Abstract: The invention is directed to phosphonate nucleosides comprising a phosphonalkoxy-substituted five-membered, saturated or unsaturated, oxygen-containing ring coupled to a heterocyclic nucleobase such as a pyrimidine or purine base, as well as pharmaceutical compositions thereof. These compounds, which can be described by general formula (II), are useful for the treatment of retroviral infection, e.g., HIV (Human Immunodeficiency Virus) infection in a mammal. The invention also features synthetic intermediates for the preparation of phosphonate nucleosides.

Abstract: The present invention relates to compound of Formula I, II, III, or IV, and/or a pharmaceutical acceptable addition salt thereof and/or a stereoisomer thereof and/or a solvate thereof, wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R11, and R12 are as defined in the claim 1 or as described in detail in the description of the invention, and to the use of said compounds to treat or prevent viral infections and their use to manufacture a medicine to treat or prevent viral infections, particularly infections with RNA-viruses belonging to the family of the Retroviridae, the family of the Flaviviridae and the family of the Picornaviridae and more preferably infections with Human Immunodeficiency Virus 1 (HIV1), Human Immunodeficiency Virus 2 (HIV2), Hepatitis C virus (HCV), Dengue virus, and enteroviruses like Coxsackievirus, Rhinovirus and Poliovirus.

Abstract: The present invention relates to the use of N-aminoimidazole or N-aminoimidazole thione derivatives as cytoprotective compounds in vitro and in vivo and for the treatment or prevention of cell death mediated disorders and/or GSK-3 mediated disorders or processes.

Abstract: Disclosed herein are novel phosphonate nucleosides and thiophosphonate nucleosides comprising a phosphonalkoxy-substituted or phosphonothioalkyl-substituted five-membered, saturated or unsaturated, oxygen-containing or sulfur-containing ring coupled to a heterocyclic nucleobase such as a pyrimidine or purine base. The invention further relates to compounds having HIV (Human Immunodeficiency Virus) replication inhibiting properties and to compounds having antiviral activities with respect to other viruses. The invention also relates to methods for preparation of all such compounds and pharmaceutical compositions comprising them. The invention further relates to the use of said compounds as a medicine and in the manufacture of a medicament useful for the treatment of subjects suffering from HIV infection, as well as for treatment of other viral, retroviral or lentiviral infections and to the treatment of animals suffering from FIV, viral, retroviral or lentiviral infections.

Abstract: Disclosed herein are novel phosphonate nucleosides and thiophosphonate nucleosides comprising a phosphonalkoxy-substituted or phosphonothioalkyl-substituted five-membered, saturated or unsaturated, oxygen-containing or sulfur-containing ring coupled to a heterocyclic nucleobase such as a pyrimidine or purine base. The invention further relates to compounds having HIV (Human Immunodeficiency Virus) replication inhibiting properties and to compounds having antiviral activities with respect to other viruses. The invention also relates to methods for preparation of all such compounds and pharmaceutical compositions comprising them. The invention further relates to the use of said compounds as a medicine and in the manufacture of a medicament useful for the treatment of subjects suffering from HIV infection, as well as for treatment of other viral, retroviral or lentiviral infections and to the treatment of animals suffering from FIV, viral, retroviral or lentiviral infections.

Abstract: The present invention relates to the use of N-aminoimidazole or N-aminoimidazole-thione derivatives as cytoprotective compounds in vitro and in vivo and for the treatment or prevention of cell death mediated disorders and/or GSK-3 mediated disorders or processes.

Abstract: The present invention relates to novel phosponate nucleosides, more specifically to novel phosponalkoxy substituted nucleosides. The invention further relates to compounds having HIV (Human Immunodeficiency Virus) replication inhibiting properties and to compounds having antiviral activities with respect to other viruses. The invention also relates to methods for preparation of all such compounds and pharmaceutical compositions comprising them. The invention further relates to the use of said compounds as a medicine and in the manufacture of a medicament useful for the treatment of subjects suffering from HIV infection, as well as for treatment of other viral, retroviral or lentiviral infections and to the treatment of animals suffering from FIV, viral, retroviral or lentiviral infections.

Abstract: The invention provides the use of a pyrano[2,3-d:6,5-d′] dipyrimidine derivative for the manufacture of a medicine for the treatment of a retroviral infection in a mammal. It also provides a product containing: (a) one or more derivatives of a pyrano[2,3-d:6,5-d′] dipyrimidine; and (b) one or more anti-retroviral drugs, including drugs effective against one or more retroviral or cellular proteins involved in the entry and/or replication of a retrovirus, in respective proportions such as to provide a synergistic effect against a retroviral infection in a mammal, as a combined preparation for simultaneous, separate or sequential use in retroviral infection therapy.