Provided are a compound superior in a cytotoxic action on cancer cells, an action inducing degradation of BET protein in cancer cells, and an inhibitory action on the binding of BET protein and acetylated histone, and useful as an anticancer agent, a BET protein degradation inducer or a BET protein inhibitor. A compound represented by the following formula (I) ##STR00001##
wherein each symbol is as defined in the specification, or a pharmacologically acceptable salt thereof.

Compounds of Formula (I) and methods of inhibiting the replication of viruses in a biological sample or patient, of reducing the amount of viruses in a biological sample or patient, and of treating a vims infection in a patient, comprising administering to said biological sample or patient an effective amount of a compound represented by Formula (I), a compound of Table A or B or a pharmaceutically acceptable salt thereof.

##STR00001##

The invention relates to novel linkers which comprise two or three basic, acidic or hydrophobic natural or non-natural amino acids. The invention also relates to drug conjugates comprising said linkers, to pharmaceutical compositions comprising said drug conjugates and to the use of said drug conjugates in preventing, suppressing or treating cancer.

Provided are a tripeptide compound, a preparation method therefor, and an application thereof. The structure of the related compound is represented by formula (I). The provided compound has angiotensin converting enzyme inhibiting bioactivity, and the compound and a pharmaceutical composition thereof play a role in preventing and treating hypertension and other cardiocerebral vascular system diseases.

The present invention is directed to compounds, compositions and methods for preventing, treating or curing Norovirus infection in human subjects or other animal hosts.

The present invention relates to novel amide derivatives of N-urea substituted amino acids, processes for preparing them, pharmaceutical compositions containing them and their use as pharmaceuticals as modulators of the N-formyl peptide receptor like-1 (FPRL-1) receptor.

Provided are a tripeptide compound, a preparation method therefor, and an application thereof. The structure of the related compound is represented by formula (I). The provided compound has angiotensin converting enzyme inhibiting bioactivity, and the compound and a pharmaceutical composition thereof play a role in preventing and treating hypertension and other cardiocerebral vascular system diseases.

The present disclosure concerns inhibitors of Norovirus protease that are suitable for use against any genotype of Norovirus, including at least GII.4 Norovirus proteases. In particular embodiments, specific compositions are encompassed, including their use for prevention or treatment of Norovirus infection in an individual.

Provided are a compound superior in a cytotoxic action on cancer cells, an action inducing degradation of BET protein in cancer cells, and an inhibitory action on the binding of BET protein and acetylated histone, and useful as an anticancer agent, a BET protein degradation inducer or a BET protein inhibitor. A compound represented by the following formula (I)

##STR00001##

wherein each symbol is as defined in the specification, or a pharmacologically acceptable salt thereof

The present invention provides pyridazine derivatives of formula (I), which are therapeutically useful as SMARCA2/4 degraders. These compounds are useful in the treatment and/or prevention of diseases or disorders dependent upon SMARCA2/4 in a mammal. The present invention also provides preparation of the compounds and pharmaceutical compositions of at least one of the pyridazine derivatives of formula (I) or a pharmaceutically acceptable salt, or a stereoisomer thereof.

##STR00001##