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 invention provides compounds of formula I or II:

##STR00001##

wherein X.sup.1, X.sup.3, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are as described herein, as well as pharmaceutically acceptable salts thereof. Further the present invention is concerned with the manufacture of the compounds of formula I, pharmaceutical compositions comprising them and their use as medicaments.

The present invention provides compounds of formula I or II:

##STR00001##

wherein X.sup.1, X.sup.3, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are as described herein, as well as pharmaceutically acceptable salts thereof. Further the present invention is concerned with the manufacture of the compounds of formula I, pharmaceutical compositions comprising them and their use as medicaments.

Derivatives of mDIVI-1 may be used to target and eliminate cancer stem cells. Disruption in the mitochondrial dynamics balance plays a role in cancer. Proteins involved in regulating mitochondrial dynamics represent potential targets for cancer treatment. Mitochondrial fission protein DRP1 is such a target. Derivatives of mDIVI-1 inhibit DRP1, and have demonstrated inhibition of tumorsphere forming capacity, migration and stemness-related signaling in breast cancer cells. These properties result from induction of mitochondrial oxidative stress and reduction of mitochondrial metabolism in the target cancer cells. The potency of an mDIVI-1 derivative may be dramatically increased through addition of at least one membrane-targeting signal and/or a mitochondria-targeting signal.

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.

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.

The present disclosure provides diacylglycerol kinase modulating compounds, and pharmaceutical compositions thereof, for treating cancer, including solid tumors, and viral infections, such as HIV or hepatitis B virus infection. The compounds can be used alone or in combination with other agents.

The present disclosure provides diacylglycerol kinase modulating compounds, and pharmaceutical compositions thereof, for treating cancer, including solid tumors, and viral infections, such as HIV or hepatitis B virus infection. The compounds can be used alone or in combination with other agents.

The present inventors have developed new radiolabeled Darapladib and analogs thereof which can be used for the specific detection of vulnerable atherosclerotic plaques by targeting lipoprotein-associated phospholipase A2 (Lp-PLA2) which is a biomarker of choice concerning inflammation and atherosclerosis progression. Thus, the present invention relates to radiolabeled Darapladib and analogs thereof and their use as imaging compounds.

The present inventors have developed new radiolabeled Darapladib and analogs thereof which can be used for the specific detection of vulnerable atherosclerotic plaques by targeting lipoprotein-associated phospholipase A2 (Lp-PLA2) which is a biomarker of choice concerning inflammation and atherosclerosis progression. Thus, the present invention relates to radiolabeled Darapladib and analogs thereof and their use as imaging compounds.