A compound represented by general formula (I) (in the formula, all symbols are as described in the description) or a salt thereof has a potent nerve-protecting and/or -repairing activity, and therefore can be used as a therapeutic agent for neuropathy (e.g., chronic inflammatory demyelinating polyneuropathy, Guillain-Barre syndrome, periarteritis nodosa, allergic vasculitis, diabetic peripheral neuropathy, entrapment neuropathy, peripheral neuropathy associated with the administration of a chemotherapeutic drug, or peripheral neuropathy associated with Charcot-Marie-Tooth disease).

##STR00001##

A family of amine mining collectors that uses alkoxylates allows for the easy adjustment of solubility and molecular weight useful because anionic and cationic mineral collectors require such varying degrees of solubility and molecular weight. The family of the present invention allows for the optimization of both parameters and an increase in collector efficiency.

Provided are compounds of Formula I, or pharmaceutically acceptable salts thereof, and methods for their use and production.

Provided are compounds of Formula I, or pharmaceutically acceptable salts thereof, and methods for their use and production.

AKR1C3-activated prodrugs of Formula (I), pharmaceutical compositions comprising prodrugs of Formula (I), and their use in the treatment of hyperproliferative diseases such as cancer and for cell ablation. The compounds of the invention are able to penetrate neoplasm tissue and be selectively reduced to an active (cytotoxic) form by contact with an AKR1C3 enzyme found in the neoplasm. This active form is therefore able to ablate AKR1C3-expressing target cells of the neoplasm and therefore has particular utility in the treatment of cancer and other hyperproliferative disorders.

##STR00001##

Disclosed are a novel tetrahydroisoquinoline compound, a method for preparing intermediates thereof, a pharmaceutical composition thereof and the use thereof. The tetrahydroisoquinoline compound of the present invention has a good inhibitory effect on phosphodiesterase (PDE4), and can be used in the prevention, treatment or auxiliary treatment of multiple diseases associated with the activity or expression of phosphodiesterase, especially PDE4-associated immune and inflammatory diseases, such as psoriasis and arthritis.

##STR00001##

Disclosed are a novel tetrahydroisoquinoline compound, a method for preparing intermediates thereof, a pharmaceutical composition thereof and the use thereof. The tetrahydroisoquinoline compound of the present invention has a good inhibitory effect on phosphodiesterase (PDE4), and can be used in the prevention, treatment or auxiliary treatment of multiple diseases associated with the activity or expression of phosphodiesterase, especially PDE4-associated immune and inflammatory diseases, such as psoriasis and arthritis.

##STR00001##

The present technology is directed to compounds, compositions, and methods related to non-morphinan-like kappa opioid receptor (KOR) antagonists. The technology is suited to treat addiction, diuresis, depression, post traumatic stress disorder, an eating disorder, panic disorder, social anxiety disorder, general anxiety disorder, obsessive compulsive disorders, excessive or unreasonable specific phobias, and/or other conditions related to anxiety or aversion-reward responses.

The present technology is directed to compounds, compositions, and methods related to non-morphinan-like kappa opioid receptor (KOR) antagonists. The technology is suited to treat addiction, diuresis, depression, post traumatic stress disorder, an eating disorder, panic disorder, social anxiety disorder, general anxiety disorder, obsessive compulsive disorders, excessive or unreasonable specific phobias, and/or other conditions related to anxiety or aversion-reward responses.

The invention provides compounds of Formula (I)

##STR00001##

as described herein, along with pharmaceutically acceptable salts, pharmaceutical compositions containing such compounds, and methods to use these compounds, salts and compositions for treating viral infections, particularly infections caused by hepatitis B virus, and reducing the occurrence of serious conditions associated with HBV.