Described herein, inter alia, are compounds for treating cancer and methods of use. This disclosure features chemical entities (e.g., small hairpin RNAs (shRNAs), micro RNA (miRNAs), small interfering RNA (siRNAs), small molecule inhibitors, antisense nucleic acids, peptides, viruses, CRISPR-sgRNAs, or combinations thereof) that inhibit one or more of m6A writers (e.g., methyltransferase like 3 (Mettl3 or MT-A70) or methyltransferase like-14 (Mettl14)), m6Am writers (e.g., phosphorylated CTD interacting factor I (PCIF 1), or Mettl3/14), m6A erasers (e.g., fat-mass and obesity-associated protein (FTO) or ALKB homolog 5 (ALKBH5)), m6Am erasers (e.g., FTO), m6A readers (e.g., YTH domain-containing family proteins (YTHs)), YTF domain family member 1 (YTHDF 1), YTF domain family member 2 (YTHDF 2), YTF domain family member 3 (YTHDF 3), or tyrosine-protein phosphatase non-receptor type 2 (PTPN2).

Described herein are compounds and compositions for use in treatment or prevention of an inflammatory bowel disease, gastrointestinal cancer, or a systemic bacterial infection in a subject in need thereof. The subject may be colonized by one or more pathogenic bacterial strains such as B. fragilis, E. faecalis, or C. perfringens. In certain aspects, the disclosure provides a method of diminishing the pathogenic effects of these bacterial strains by administering a compound that binds to and/or inhibits one or more toxins produced thereby.

Described herein are compounds and compositions for use in treatment or prevention of an inflammatory bowel disease, gastrointestinal cancer, or a systemic bacterial infection in a subject in need thereof. The subject may be colonized by one or more pathogenic bacterial strains such as B. fragilis, E. faecalis, or C. perfringens. In certain aspects, the disclosure provides a method of diminishing the pathogenic effects of these bacterial strains by administering a compound that binds to and/or inhibits one or more toxins produced thereby.

The present invention relates to a compound of formula (I), or one of its pharmaceutically acceptable salts: (I) wherein R1, R2 and —X—Y— have specific definitions. It also relates to the use of such a compound in therapy; and to a process for preparing it.

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The present invention relates to a compound of formula (I), or one of its pharmaceutically acceptable salts: (I) wherein R1, R2 and —X—Y— have specific definitions. It also relates to the use of such a compound in therapy; and to a process for preparing it.

##STR00001##

The invention provides an N-benzyl-N-arylsulfonamide derivative, which is an N-benzyl-N-arylsulfonamide compound represented by formula (I) or a pharmaceutically acceptable salt or solvate thereof. The N-benzyl-N-arylsulfonamide derivative is obtained by condensing a substituted nitrobenzene with 5- or 6-membered nitrogen-containing aliphatic heterocycle (the ring B), reducing the nitro group to an amino group, and subjecting the amino group to reductive amination, sulfonamidation; or by subjecting a substituted nitrobenzene to nitro reduction, reductive amination and sulfonamidation, and condensing the resultant intermediate with 5- or 6-membered nitrogen-containing aliphatic heterocycle (the ring B). It has been experimentally demonstrated that the N-benzyl-N-arylsulfonamide derivative of the invention can specifically bind to Kv1.3 potassium channel and inhibit or decrease its activity, and is useful in the treatment of autoimmune diseases caused by abnormal activation of the Kv1.3 potassium channel in human or animals. The invention further provides a medicament or a pharmaceutical composition comprising the N-benzyl-N-arylsulfonamide derivative.

##STR00001##

The invention provides an N-benzyl-N-arylsulfonamide derivative, which is an N-benzyl-N-arylsulfonamide compound represented by formula (I) or a pharmaceutically acceptable salt or solvate thereof. The N-benzyl-N-arylsulfonamide derivative is obtained by condensing a substituted nitrobenzene with 5- or 6-membered nitrogen-containing aliphatic heterocycle (the ring B), reducing the nitro group to an amino group, and subjecting the amino group to reductive amination, sulfonamidation; or by subjecting a substituted nitrobenzene to nitro reduction, reductive amination and sulfonamidation, and condensing the resultant intermediate with 5- or 6-membered nitrogen-containing aliphatic heterocycle (the ring B). It has been experimentally demonstrated that the N-benzyl-N-arylsulfonamide derivative of the invention can specifically bind to Kv1.3 potassium channel and inhibit or decrease its activity, and is useful in the treatment of autoimmune diseases caused by abnormal activation of the Kv1.3 potassium channel in human or animals. The invention further provides a medicament or a pharmaceutical composition comprising the N-benzyl-N-arylsulfonamide derivative.

##STR00001##

The invention discussed in this application relates to hydroxamic acid-based compounds that are useful as imaging agents when bound to an appropriate metal centre, particularly for the imaging of tumours.

The invention discussed in this application relates to hydroxamic acid-based compounds that are useful as imaging agents when bound to an appropriate metal centre, particularly for the imaging of tumours.

The present invention relates to compounds that are inhibitors of hepatitis B virus (HBV). Compounds of this invention are useful alone or in combination with other agents for treating, ameliorating, preventing or curing HBV infection and related conditions. The present invention also relates to pharmaceutical compositions containing said compounds.