A compound capable of being used as a tumor inhibitor, a preparation method therefor, and application thereof. The compound has a structure represented by general formula I; a stereoisomer, an enantiomer, a raceme, a cis/trans isomer, a tautomer, and an isotopic variant of the compound are comprised; the compound can be used separately or in combination with other drugs for treating tumors or inflammatory diseases, or for treating other disorders or diseases mediated by the activity of MDM2 and/or MDM4, and shows prominent curative activity. ##STR00001##

Provided are compounds, which may be referred to as PHOTACs (photoswitchable proteolysis targeting chimeras), and compositions, kits, and methods of making and using PHOTACs. PHOTACs have one or more E3 ligase ligand(s), one or more photoswitchable group(s), optionally, one or more linker(s), and one or more ligand(s) for a target protein. PHOTACs may be suitable for use in methods to treat diseases, such as, for example, cancer. PHOTACs may also be suitable for use in methods to induce selective degradation of a target protein.

The present invention discloses compounds of Formula (I), and pharmaceutically acceptable salts, thereof: ##STR00001##
which inhibit coronavirus replication activity. The invention further relates to pharmaceutical compositions comprising a compound of Formula (I) or a pharmaceutically acceptable salt thereof, and methods of treating or preventing a coronavirus infection in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of a compound of Formula (I) or a pharmaceutically acceptable salt thereof.

The present invention discloses compounds of Formula (I), and pharmaceutically acceptable salts, thereof: ##STR00001##
which inhibit coronavirus replication activity. The invention further relates to pharmaceutical compositions comprising a compound of Formula (I) or a pharmaceutically acceptable salt thereof, and methods of treating or preventing a coronavirus infection in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of a compound of Formula (I) or a pharmaceutically acceptable salt thereof.

Provided herein are compounds, pharmaceutical compositions comprising the compounds, methods of preparing the compounds, and methods of using the compounds and compositions in treating conditions associated with voltage-gated sodium channel function where the compounds are 11,13-modified saxitoxins according to Formula (I): (Formula (I)); where R.sup.1, and R.sup.2 are as described herein.

##STR00001##

Small molecules comprised of spiroindolinone analogues are provided. Some spiroindolinones are provided with a particular relative stereochemistry in which the indolone carbonyl and all three hydrogens are on the same face of the central pyrrolidine ring. A stereoselective method of synthesis is provided for making some of the spiroindolinones described above. Formulations and medicaments are also provided that are directed to the treatment of disease, such as, for example, fungal infections. Therapeutics are also provided containing a therapeutically effective dose of one or more small molecule compounds, present either as pharmaceutically effective salt or in pure form, including, but not limited to, formulations for oral, intravenous, or intramuscular administration.

Small molecules comprised of spiroindolinone analogues are provided. Some spiroindolinones are provided with a particular relative stereochemistry in which the indolone carbonyl and all three hydrogens are on the same face of the central pyrrolidine ring. A stereoselective method of synthesis is provided for making some of the spiroindolinones described above. Formulations and medicaments are also provided that are directed to the treatment of disease, such as, for example, fungal infections. Therapeutics are also provided containing a therapeutically effective dose of one or more small molecule compounds, present either as pharmaceutically effective salt or in pure form, including, but not limited to, formulations for oral, intravenous, or intramuscular administration.

Described herein are TYK2 pseudokinase ligands and methods of utilizing TYK2 pseudokinase ligands in the treatment of diseases, disorders or conditions. Also described herein are pharmaceutical compositions containing such compounds.

Semisynthetic methods of preparing neosaxitoxin from cultures of the dinoflagellates Alexandrium pacificum and Gymnodinium catenatum are described. The scalable method includes the reductive desulfonation of an unresolved mixture of gonyautoxin 1 (GTX1) and gonyautoxin 4 (GTX4) using dithiol in a buffered reaction solvent at a pH of about 7.5.

The present disclosure relates to novel compounds, to said compounds for use as a medicine, more in particular for the prevention or treatment of diseases mediated by activity of YAP/TAZ-TEAD transcription, yet more in particular for the prevention or treatment of cancer or fibrosis. The present disclosure also relates to a method for the prevention or treatment of said diseases comprising the use of the novel compounds.