The present disclosure provides a tyrosine kinase inhibitor having the general formula (I).

##STR00001## R1 is C.sub.1-C.sub.6 alkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, phenyl, mono-substituted phenyl, poly-substituted phenyl, trifluoromethyl, 2,2,2-trifluoroethyl, CH.sub.3O(CH.sub.2)n-,

##STR00002##

R being methyl, ethyl, isopropyl, trifluoromethyl, 2,2,2-trifluoroethyl, cyclopropyl, acetyl or acryloyl, and n being an integer from 1 to 6. R2 and R3 are respectively halogen, hydrogen, amino, substituted amino, cyano, hydroxyl, sulfonic acid group, sulfonamide, trifluoromethyl, 2,2,2-trifluoroethyl, methyl, methoxy or ethynyl. R2 and R3 are in an ortho, para or meta position. Y is NH, O, S or Z—N, where Z is methyl, ethyl, isopropyl, trifluoromethyl, 2,2,2-trifluoroethyl or cyclopropyl. X is Cl, Br or F.

The present invention provides compounds of Formula (I) which can be used as CCR8 inhibitors, which can be used as treatment or prevention of cancer using CCR8 inhibitors targeted tumor specific T regulatory cells.

##STR00001##

Provided are fused ring compounds of Formula (I), Formula (II), or Formula (III), as further detailed herein, which are used for the inhibition of Ras proteins, as well as compositions comprising these compounds and methods treatment by their administration.

##STR00001##

Provided are fused ring compounds of Formula (I), Formula (II), or Formula (III), as further detailed herein, which are used for the inhibition of Ras proteins, as well as compositions comprising these compounds and methods treatment by their administration.

##STR00001##

The present disclosure relates generally to inhibitors of ectonucleotide pyrophosphatase/phosphodiesterase 1 (ENPP1), compositions thereof, and methods of using said compounds and compositions thereof. More specifically, the present disclosure relates to sulfoximine-based inhibitors of ENPP1 and methods of their use for treating disease mediated by ENPP1.

The present disclosure relates generally to inhibitors of ectonucleotide pyrophosphatase/phosphodiesterase 1 (ENPP1), compositions thereof, and methods of using said compounds and compositions thereof. More specifically, the present disclosure relates to sulfoximine-based inhibitors of ENPP1 and methods of their use for treating disease mediated by ENPP1.

The present invention provides a novel compound or a pharmaceutically acceptable salt thereof having an inhibitory action on an EGFR tyrosine kinase having an exon 20 insertion mutation and/or a HER2 tyrosine kinase having an exon 20 insertion mutation, a compound represented by Formula (I) or a pharmaceutically acceptable salt thereof wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 in the Formula (I) are each as defined in the description.

##STR00001##

The present disclosure provides pyrimidine compounds useful as tyrosine kinase inhibitors, and particularly epidermal growth factor receptor (EGFR) and human epidermal growth factor receptor 2 (HER2) inhibitors. The disclosed EGFR inhibitors are effective against acquired resistance mutations appearing after treatment of existing EGFR inhibitors. The present disclosure also provides methods of treating cancer using pyrimidine compounds and pharmaceutical compositions comprising pyrimidine compounds. The methods of treating cancer may be directed to cancer with acquired resistance mutations.

The present disclosure provides pyrimidine compounds useful as tyrosine kinase inhibitors, and particularly epidermal growth factor receptor (EGFR) and human epidermal growth factor receptor 2 (HER2) inhibitors. The disclosed EGFR inhibitors are effective against acquired resistance mutations appearing after treatment of existing EGFR inhibitors. The present disclosure also provides methods of treating cancer using pyrimidine compounds and pharmaceutical compositions comprising pyrimidine compounds. The methods of treating cancer may be directed to cancer with acquired resistance mutations.

Compounds having activity as inhibitors of G12C mutant KRAS protein are provided. The compounds have the following structure (I):

##STR00001##

or a pharmaceutically acceptable salt, tautomer, prodrug or stereoisomer thereof, wherein R.sup.1, R.sup.2a, R.sup.3a, R.sup.3b, R.sup.4a, R.sup.4b, G.sup.1, G.sup.2, L.sup.1, L.sup.2, m.sup.1, m.sup.2, A, B, W, X, Y, Z and E are as defined herein. Methods associated with preparation and use of such compounds, pharmaceutical compositions comprising such compounds and methods to modulate the activity of G12C mutant KRAS protein for treatment of disorders, such as cancer, are also provided.