Two crystals of (S)-(+)-hydroxychloroquine sulfate. One crystal features diffraction peaks at 12.3±0.1°, 13.1±0.1°, 17.9±0.1°, 22.8±0.1°, 23.4±0.1°, 25.1±0.1°, and 26.3±0.1° as 2θ angles in a powder X-ray diffraction pattern. The other crystal features diffraction peaks at 12.8±0.1°, 14.5±0.1°, 16.7±0.1°, 17.6±0.1°, 20.2±0.1°, 21.4±0.1°, 23.8±0.1°, 25.7±0.1°, and 26.0±0.1° as 2θ angles in a powder X-ray diffraction pattern. Also disclosed are methods of preparing crystals of (S)-(+)-hydroxychloroquine sulfate.

Two crystals of (S)-(+)-hydroxychloroquine sulfate. One crystal features diffraction peaks at 12.3±0.1°, 13.1±0.1°, 17.9±0.1°, 22.8±0.1°, 23.4±0.1°, 25.1±0.1°, and 26.3±0.1° as 2θ angles in a powder X-ray diffraction pattern. The other crystal features diffraction peaks at 12.8±0.1°, 14.5±0.1°, 16.7±0.1°, 17.6±0.1°, 20.2±0.1°, 21.4±0.1°, 23.8±0.1°, 25.7±0.1°, and 26.0±0.1° as 2θ angles in a powder X-ray diffraction pattern. Also disclosed are methods of preparing crystals of (S)-(+)-hydroxychloroquine sulfate.

Compounds, compositions and methods useful for treating infectious diseases are provided. In particular, 3-aryl quinoline compounds, their synthesis, pharmaceutical compositions thereof and methods of treating infectious diseases such as malaria, are disclosed.

Compounds, compositions and methods useful for treating infectious diseases are provided. In particular, 3-aryl quinoline compounds, their synthesis, pharmaceutical compositions thereof and methods of treating infectious diseases such as malaria, are disclosed.

This invention is in the field of medicinal chemistry. In particular, the invention relates to a new class of small-molecules having a quinoline or thioxanthenone (or similar) structure which function as autophagy inhibitors and/or histone deactylase inhibitors, and their use as therapeutics for the treatment of conditions characterized with aberrant autophagy activity and/or aberrant HDAC activity (e.g., cancer, pulmonary hypertension, diabetes, neurodegenerative disorders, aging, heart disease, rheumatoid arthritis, infectious diseases, conditions and symptoms caused by a viral infection (e.g., COVID-19)).

This invention is in the field of medicinal chemistry. In particular, the invention relates to a new class of small-molecules having a quinoline or thioxanthenone (or similar) structure which function as autophagy inhibitors and/or histone deactylase inhibitors, and their use as therapeutics for the treatment of conditions characterized with aberrant autophagy activity and/or aberrant HDAC activity (e.g., cancer, pulmonary hypertension, diabetes, neurodegenerative disorders, aging, heart disease, rheumatoid arthritis, infectious diseases, conditions and symptoms caused by a viral infection (e.g., COVID-19)).

Compounds of Formula 1a, 1b, or Ic, (Ia); (Ib); or (Ic), are described, where the various substituents are defined herein. The compounds can modulate a property or effect of Akt3 in vitro or in vivo, and can also be used, individually or in combination with other agents, in the prevention or treatment of a variety of conditions. Methods for synthesizing the compounds are described. Pharmaceutical compositions and methods of using these compounds or compositions, individually or in combination with other agents or compositions, in the prevention or treatment of a variety of conditions are also described.

##STR00001##

Compounds of Formula 1a, 1b, or Ic, (Ia); (Ib); or (Ic), are described, where the various substituents are defined herein. The compounds can modulate a property or effect of Akt3 in vitro or in vivo, and can also be used, individually or in combination with other agents, in the prevention or treatment of a variety of conditions. Methods for synthesizing the compounds are described. Pharmaceutical compositions and methods of using these compounds or compositions, individually or in combination with other agents or compositions, in the prevention or treatment of a variety of conditions are also described.

##STR00001##

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.