The disclosure provides compounds with warheads and their use in treating medical diseases or disorders, such as viral infections. Pharmaceutical compositions and methods of making various compounds with warheads are provided. The compounds are contemplated to inhibit proteases, such as the 3C, CL- or 3CL-like protease.

It relates to a compound of formula (I), or a pharmaceutically or veterinary acceptable salt thereof, or any stereoisomer or mixtures of stereoisomers, either of the compound of formula (I) or of any of its pharmaceutically or veterinary acceptable salts, wherein R.sub.1, R.sub.2, and R.sub.3 are as defined herein, for use in the treatment or prevention of a neurological disease or condition which results in the destruction or degeneration of neurons, axons or myelin, wherein the treatment comprises: a) a first time period from 1 to 7 days, wherein the compound is administered once or several times to a subject in need thereof, and b) a second time period equal to or longer than 13 days, wherein the compound is not administered wherein the second time period takes place after the first time period and before the next administration of the compound.

##STR00001##

It relates to a compound of formula (I), or a pharmaceutically or veterinary acceptable salt thereof, or any stereoisomer or mixtures of stereoisomers, either of the compound of formula (I) or of any of its pharmaceutically or veterinary acceptable salts, wherein R.sub.1, R.sub.2, and R.sub.3 are as defined herein, for use in the treatment or prevention of a neurological disease or condition which results in the destruction or degeneration of neurons, axons or myelin, wherein the treatment comprises: a) a first time period from 1 to 7 days, wherein the compound is administered once or several times to a subject in need thereof, and b) a second time period equal to or longer than 13 days, wherein the compound is not administered wherein the second time period takes place after the first time period and before the next administration of the compound.

##STR00001##

The present invention relates to an inhibitor of an iron-containing hydrogenase of a methanogenic archaeon for use in the treatment or prevention of a parkinsonian condition, wherein said archaeon is in the gut of a subject and is characterized by the production of 2-hydroxypyridine. In addition, the present invention relates to a pharmaceutical composition comprising such an inhibitor and a kit comprising such an inhibitor. Further, the present invention relates to a method of screening for an inhibitor for use according to the present invention and a method for determining whether or not a subject is susceptible to a treatment with an inhibitor for use according to the present invention.

The present invention relates to an inhibitor of an iron-containing hydrogenase of a methanogenic archaeon for use in the treatment or prevention of a parkinsonian condition, wherein said archaeon is in the gut of a subject and is characterized by the production of 2-hydroxypyridine. In addition, the present invention relates to a pharmaceutical composition comprising such an inhibitor and a kit comprising such an inhibitor. Further, the present invention relates to a method of screening for an inhibitor for use according to the present invention and a method for determining whether or not a subject is susceptible to a treatment with an inhibitor for use according to the present invention.

The present invention discloses a drug delivery system for targeted therapy comprising a functionalized lipid-based nanoplatform, where at least one ligand is coupled to the surface of the nanoplatform and encapsulates at least one pharmaceutically active ingredient. A process for obtaining the drug delivery system of the present invention is also disclosed as well as a composition comprising the system of the invention. The invention relates to the field of medicine and biotechnology. The present solution aims at developing targeting co-encapsulating nanostructured lipid carriers for the treatment of different types of cancer, including glioblastoma, as well as other diseases and disorders, envisioning the establishment of an in vitro/in vivo correlation.

The present invention discloses a drug delivery system for targeted therapy comprising a functionalized lipid-based nanoplatform, where at least one ligand is coupled to the surface of the nanoplatform and encapsulates at least one pharmaceutically active ingredient. A process for obtaining the drug delivery system of the present invention is also disclosed as well as a composition comprising the system of the invention. The invention relates to the field of medicine and biotechnology. The present solution aims at developing targeting co-encapsulating nanostructured lipid carriers for the treatment of different types of cancer, including glioblastoma, as well as other diseases and disorders, envisioning the establishment of an in vitro/in vivo correlation.

The present invention discloses a drug delivery system for targeted therapy comprising a functionalized lipid-based nanoplatform, where at least one ligand is coupled to the surface of the nanoplatform and encapsulates at least one pharmaceutically active ingredient. A process for obtaining the drug delivery system of the present invention is also disclosed as well as a composition comprising the system of the invention. The invention relates to the field of medicine and biotechnology. The present solution aims at developing targeting co-encapsulating nanostructured lipid carriers for the treatment of different types of cancer, including glioblastoma, as well as other diseases and disorders, envisioning the establishment of an in vitro/in vivo correlation.

A drug containing, as an active ingredient, a compound having an antagonistic activity against an EP.sub.2 receptor in the prevention and/or treatment of a disease associated with the activation of an EP.sub.2 receptor, of formula (I-A):

##STR00001##

wherein all symbols have the same meanings as those described in the specification, or a pharmaceutically acceptable salt thereof.

A drug containing, as an active ingredient, a compound having an antagonistic activity against an EP.sub.2 receptor in the prevention and/or treatment of a disease associated with the activation of an EP.sub.2 receptor, of formula (I-A):

##STR00001##

wherein all symbols have the same meanings as those described in the specification, or a pharmaceutically acceptable salt thereof.