The present invention discloses a benzyl phenyl ether derivative, a preparation method therefor, and a pharmaceutical composition and uses thereof. Specifically, the invention relates to benzyl phenyl ether derivatives represented by formula (I), a pharmaceutically-acceptable salt thereof, a stereoisomer thereof, a preparation method therefor, a pharmaceutical composition containing the one or more compounds, and uses of the compounds in treating diseases related to PD-1/PD-L1 signal channels, such as cancers, infectious diseases and autoimmune diseases. ##STR00001##

The present invention discloses a phenylate derivative, a preparation method therefor, and a pharmaceutical composition and uses thereof. Specifically, the invention relates to phenylate derivatives represented by formula (I), a pharmaceutically-acceptable salt thereof, a stereoisomer thereof, a preparation method therefor, a pharmaceutical composition containing the one or more compounds, and uses of the compounds in treating diseases related to PD-1/PD-L1 signal channels, such as cancers, infectious diseases and autoimmune diseases. ##STR00001##

The present invention discloses a phenylate derivative, a preparation method therefor, and a pharmaceutical composition and uses thereof. Specifically, the invention relates to phenylate derivatives represented by formula (I), a pharmaceutically-acceptable salt thereof, a stereoisomer thereof, a preparation method therefor, a pharmaceutical composition containing the one or more compounds, and uses of the compounds in treating diseases related to PD-1/PD-L1 signal channels, such as cancers, infectious diseases and autoimmune diseases. ##STR00001##

Provided is a method for preparing 2-hydroxy-4-(2, 3-disubstituted benzyloxy)-5-substituted benzaldehyde derivative represented by formula (I). The method comprises the following steps: (1) preparing 3-aryl-2-substituted toluene derivative 2 by using 3-iodo-2-substituted toluene derivative 1 and aryl boronic acid 5 or aryl boronate as starting materials; (2) preparing a benzyl halide derivative 3 by using 3-aryl-2-substituted toluene derivative 2 as starting materials; and (3) preparing 4-(2, 3-disubstituted benzyloxy)-2-hydroxy-5-substituted benzaldehyde derivative (I) by using benzyl halide derivative 3 and 2,4-dihydroxy-5-substituted benzaldehyde 6. ##STR00001##

Provided is a method for preparing 2-hydroxy-4-(2, 3-disubstituted benzyloxy)-5-substituted benzaldehyde derivative represented by formula (I). The method comprises the following steps: (1) preparing 3-aryl-2-substituted toluene derivative 2 by using 3-iodo-2-substituted toluene derivative 1 and aryl boronic acid 5 or aryl boronate as starting materials; (2) preparing a benzyl halide derivative 3 by using 3-aryl-2-substituted toluene derivative 2 as starting materials; and (3) preparing 4-(2, 3-disubstituted benzyloxy)-2-hydroxy-5-substituted benzaldehyde derivative (I) by using benzyl halide derivative 3 and 2,4-dihydroxy-5-substituted benzaldehyde 6. ##STR00001##

Provided is a method for preparing 2-hydroxy-4-(2, 3-disubstituted benzyloxy)-5-substituted benzaldehyde derivative represented by formula (I). The method comprises the following steps: (1) preparing 3-aryl-2-substituted toluene derivative 2 by using 3-iodo-2-substituted toluene derivative 1 and aryl boronic acid 5 or aryl boronate as starting materials; (2) preparing a benzyl halide derivative 3 by using 3-aryl-2-substituted toluene derivative 2 as starting materials; and (.sup.3) preparing 4-(2, 3-disubstituted benzyloxy)-2-hydroxy-5-substituted benzaldehyde derivative (I) by using benzyl halide derivative 3 and 2,4-dihydroxy-5-substituted benzaldehyde 6.

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The present invention discloses a nicotinyl alcohol ether derivative, a preparation method therefor, and a pharmaceutical composition and uses thereof. Specifically, the invention relates to nicotinyl alcohol ether derivatives represented by formula (I), a pharmaceutically-acceptable salt thereof, a stereoisomer thereof, a preparation method therefor, a pharmaceutical composition containing the one or more compounds, and uses of the compounds in treating diseases related to PD-1/PD-L1 signal channels, such as cancers, infectious diseases and autoimmune diseases.

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The present invention discloses an aromatic compound, a method of preparation thereof and applications thereof. The present invention provides a compound as shown in Formula I or a pharmaceutically acceptable salt thereof. The compounds of the present invention have demonstrated good safety, tolerability and reduction of liver fat in mice and potential efficacy in the treatment of NASH in animal experiments in NASH disease models.

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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 invention discloses a benzyl phenyl ether derivative, a preparation method therefor, and a pharmaceutical composition and uses thereof. Specifically, the invention relates to benzyl phenyl ether derivatives represented by formula (I), a pharmaceutically-acceptable salt thereof, a stereoisomer thereof, a preparation method therefor, a pharmaceutical composition containing the one or more compounds, and uses of the compounds in treating diseases related to PD-1/PD-L1 signal channels, such as cancers, infectious diseases and autoimmune diseases.

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