The present invention provides a heterocyclic compound having an orexin type 2 receptor agonist activity.

A compound represented by the formula (I):

##STR00001## wherein each symbol is as described in the description, or a salt thereof has an orexin type 2 receptor agonist activity, and is useful as an agent for the prophylaxis or treatment of narcolepsy.

The present invention provides a heterocyclic compound having an orexin type 2 receptor agonist activity.

A compound represented by the formula (I):

##STR00001## wherein each symbol is as described in the description, or a salt thereof has an orexin type 2 receptor agonist activity, and is useful as an agent for the prophylaxis or treatment of narcolepsy.

The present disclosure relates generally to certain compounds, pharmaceutical compositions comprising said compounds, and methods of making and using said compounds and pharmaceutical compositions. The compounds and compositions disclosed herein may be used for the treatment or prevention of a Retroviridae viral infection, including an infection caused by the HIV virus.

The present disclosure relates generally to certain compounds, pharmaceutical compositions comprising said compounds, and methods of making and using said compounds and pharmaceutical compositions. The compounds and compositions disclosed herein may be used for the treatment or prevention of a Retroviridae viral infection, including an infection caused by the HIV virus.

The present disclosure is directed to compounds of formula (I) and pharmaceutically acceptable salts thereof, wherein ring A, ring C, X.sup.1, X.sup.2, L.sup.1, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, m and n are as defined herein, which are useful as MAP4K1 inhibitors, processes for their preparation, pharmaceutical compositions comprising the compounds, and the use of the compounds or the compositions in the treatment or prevention of various diseases, conditions and/or disorders mediated by MAP4K1.

##STR00001##

In one aspect, compounds of Formula AA, or a pharmaceutically acceptable salt thereof, are featured or a pharmaceutically acceptable salt thereof, wherein the variables shown in Formula A can be as defined anywhere herein.

##STR00001##

In one aspect, compounds of Formula AA, or a pharmaceutically acceptable salt thereof, are featured or a pharmaceutically acceptable salt thereof, wherein the variables shown in Formula A can be as defined anywhere herein.

##STR00001##

Disclosed herein are compounds of formula (I) which are inhibitors of an IDO enzyme: (I). Also disclosed herein are uses of the compounds in the potential treatment or prevention of an IDO-associated disease or disorder. Also disclosed herein are compositions comprising these compounds. Further disclosed herein are uses of the compositions in the potential treatment or prevention of an IDO-associated disease or disorder.

##STR00001##

Disclosed herein are compounds of formula (I) which are inhibitors of an IDO enzyme: (I). Also disclosed herein are uses of the compounds in the potential treatment or prevention of an IDO-associated disease or disorder. Also disclosed herein are compositions comprising these compounds. Further disclosed herein are uses of the compositions in the potential treatment or prevention of an IDO-associated disease or disorder.

##STR00001##

The present invention relates to a composition capable of preventing or inhibiting axonal degeneration and effectively preventing, improving, or treating various neurological diseases caused by the axonal degeneration.