The present document describes compounds, or pharmaceutically acceptable salt thereof, of a core formula (I) where R.sub.1 features an amine group, particularly useful in the formulation of lipid particles including nucleic acid therapeutic agents, or proteins, or both, and for delivery of nucleic acid and protein therapeutics to cells in vivo or ex vivo, including anticancer and vaccine applications.

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A nitrogen-containing derivative of substituted phenol hydroxyl acid ester is represented by formula (I). A salt of the compound of formula (I) has good water solubility, and in vivo, can rapidly and completely release substituted phenols having a pharmacological effect, which can improve the water solubility of substituted phenols, rapidly exert the pharmacological effects of substituted phenols in vivo, and has good safety. The method for preparing the above-mentioned compound is provided. This compound can also be used in the preparation of drugs that produce anaesthesia and/or sedative and hypnotic effects on humans and animals.

##STR00001##

A nitrogen-containing derivative of substituted phenol hydroxyl acid ester is represented by formula (I). A salt of the compound of formula (I) has good water solubility, and in vivo, can rapidly and completely release substituted phenols having a pharmacological effect, which can improve the water solubility of substituted phenols, rapidly exert the pharmacological effects of substituted phenols in vivo, and has good safety. The method for preparing the above-mentioned compound is provided. This compound can also be used in the preparation of drugs that produce anaesthesia and/or sedative and hypnotic effects on humans and animals.

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The present invention provides compounds useful in treating or preventing inflammation, acne, bacterial conditions and promoting the appearance of healthy skin and compositions including these compounds.

The present invention provides a compound of formula (I): ##STR00001##
or a pharmaceutically acceptable salt thereof, wherein R.sup.1, R.sup.2, m and n are as defined in the specification, with an inhibitory effect of PD-L1 expression and an inhibitory effect of reduced production of IL-2 and a medicament useful for the treatment of a disease associated with the reduced immune function caused by the formation of PD-1/PD-L1 binding.

The present invention provides a compound of formula (I): ##STR00001##
or a pharmaceutically acceptable salt thereof, wherein R.sup.1, R.sup.2, m and n are as defined in the specification, with an inhibitory effect of PD-L1 expression and an inhibitory effect of reduced production of IL-2 and a medicament useful for the treatment of a disease associated with the reduced immune function caused by the formation of PD-1/PD-L1 binding.

Compounds and methods of treating HIV-1 in a human infected with HIV-1 or preventing HIV-1 infection in a human susceptible to infection with HIV-1 are provided. The compounds are of formula (I), (II), and (IA), wherein R.sup.1-R.sup.7, X, X′, Y, Y′, Z, and n are defined herein, and the methods comprises administering therapeutically effective amounts of these compounds to the human.

##STR00001##

Compounds and methods of treating HIV-1 in a human infected with HIV-1 or preventing HIV-1 infection in a human susceptible to infection with HIV-1 are provided. The compounds are of formula (I), (II), and (IA), wherein R.sup.1-R.sup.7, X, X′, Y, Y′, Z, and n are defined herein, and the methods comprises administering therapeutically effective amounts of these compounds to the human.

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The present disclosure provides, inter alia, compounds with MASP-2 inhibitory activity, compositions of such compounds and methods of making and using such compounds.

The present disclosure provides, inter alia, compounds with MASP-2 inhibitory activity, compositions of such compounds and methods of making and using such compounds.