The present invention relates to a ligand compound, a catalyst system for olefin oligomerization, and a method for olefin oligomerization using the same. The present ligand compound is a compound having a certain new structure and enables provision of a catalyst system for olefin oligomerization that can oligomerize ethylene with higher catalytic activity.

Provided herein are small molecule Epstein-Barr virus-induced G-protein coupled receptor 2 (EBI2) modulator compounds, compositions comprising the compounds, and methods of using the compounds and compositions comprising the compounds. EBI2 is a therapeutic target for the treatment of a variety of diseases or conditions. In some embodiments, EBI2 is a therapeutic target for the treatment of diseases or conditions such as, but not limited to, autoimmune diseases or conditions, cancer, and cardiovascular disease.

Novel phenazine derivatives, methods for their preparation and their medical use, in particular as anti-neoplastic agents and anti-infective agents, are provided. Novel methods for the preparation of iodinin and myxin are also provided.

The invention features compounds of the general formula (I) in which the variable groups are as defined herein, and to their preparation and use.

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Applicants have developed an amplification system and methodology for IHC and ISH staining that utilizes “click chemistry” to covalently bind reporter molecules to tissue.

The present disclosure provides compounds that are useful for inhibiting the STAT6 pathway. Also provided are related pharmaceutical compositions and methods of using the compounds. In some embodiments, the compounds may be used to treat a disease such as, e.g., an allergic lung disease, allergic rhinitis, chronic pulmonary obstructive disease, or a cancer.

The present disclosure relates to novel synthetic method of making 1, 4-diazo N-heterocycles via intermolecular amphoteric diamination of allenes, and to the compounds made by the novel synthetic method.

Applicants have developed an amplification system and methodology for IHC and ISH staining that utilizes “click chemistry” to covalently bind reporter molecules to tissue.

Fosnetupitant chloride hydrochloride having improved stability, characterized by the following chemical structure: ##STR00001##

Provided are a salt of an EGFR inhibitor, a crystal form thereof and a preparation method therefor, and an application of the salt and the crystal form in the preparation of a treatment for non-small cell lung cancer. The salt has a structure as shown in formula (II).

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