Abstract: A compound as shown in formula I, or an optical isomer thereof, a solvate thereof, a pharmaceutically acceptable salt thereof, a prodrug thereof, a tautomer thereof, a mesomer thereof, a racemate thereof, an enantiomer thereof, a diastereomer thereof, a mixture form thereof, a metabolite thereof, a metabolic precursor thereof, or an isotope substitute form thereof. TB is a target recognition/binding portion, L is a linking portion, and U is a ubiquitin protease recognition/binding portion, the three portions being connected by means of chemical bonds. The compound can significantly down-regulate mutated androgen receptor (AR) proteins, and has good inhibitory activity on prostate cancer cell lines.

Abstract: A novel method for synthesizing deuterated amides and deuterated sulfonamides includes the following steps: (1) adding a compound M, DMAP, R3—X to a solvent to obtain a compound N after a reaction is complete; and (2) adding the compound N, R4—NH—R5, or a salt and base thereof to a solvent, and purifying after a reaction is complete to obtain a compound I.

Abstract: Bifunctional chimeric heterocyclic compounds of formula (I) is effective for targeted degradation of androgen receptors and use thereof. The compound of formula (I) also has an isotopic compound, an optical isomer, a tautomer, pharmacologically acceptable salt, a prodrug thereof, or a solvate. In formula (I), ARB is an androgen receptor recognition/binding part, L is a link part, and U is a ubiquitin protease recognition/binding part; and the three parts are connected by means of chemical bonds. The compound can perform targeted degradation on androgen receptors in prostate cancer cells, and suppress proliferation of the prostate cancer cells, and also show good metabolic stability and pharmacokinetic properties. The compound has good application prospect in preparation of targeted chimeras for protein degradation of androgen receptors and in the preparation of drugs for treating related diseases regulated by the androgen receptors.

Abstract: A compound is represented by formula (I). A pharmaceutical composition contains the compound of formula (I). The compound is used in the preparation of an indoleamine-2,3-dioxygenase (IDO) inhibitor drug. The compound exhibits inhibition effect on IDO protease and metabolizes stably in the body. The compound or pharmaceutical composition thereof can be used for preparing an IDO inhibitor drug, and can also be used for preparing a drug for preventing and/or treating diseases having IDO-mediated tryptophan metabolic pathway pathological features.

Abstract: Provided is a compound represented by formula (I). Also provided are a pharmaceutical composition containing the compound of formula (I) and use of the compound in preparing indoleamine-2,3-dioxygenase (IDO) inhibitor drugs. The compound or the pharmaceutical composition thereof can be used for preparing drugs for preventing and/or treating diseases having pathological features of IDO-mediated tryptophan metabolic pathways.

Abstract: Provided is a compound represented by formula (I). Also provided are a pharmaceutical composition containing the compound of formula (I) and use of the compound in preparing indoleamine-2,3-dioxygenase (IDO) inhibitor drugs. The compound or the pharmaceutical composition thereof can be used for preparing drugs for preventing and/or treating diseases having pathological features of IDO-mediated tryptophan metabolic pathways.

Abstract: A novel method for synthesizing deuterated amides and deuterated sulfonamides includes the following steps: (1) adding a compound M, DMAP, R3—X to a solvent to obtain a compound N after a reaction is complete; and (2) adding the compound N, R4—NH—R5, or a salt and base thereof to a solvent, and purifying after a reaction is complete to obtain a compound I.

Abstract: A compound is represented by formula (I). A pharmaceutical composition contains the compound of formula (I). The compound is used in the preparation of an indoleamine-2,3-dioxygenase (IDO) inhibitor drug. The compound exhibits inhibition effect on IDO protease and metabolizes stably in the body. The compound or pharmaceutical composition thereof can be used for preparing an IDO inhibitor drug, and can also be used for preparing a drug for preventing and/or treating diseases having IDO-mediated tryptophan metabolic pathway pathological features.