A fluorescent dye, as well as a preparation method and uses thereof, wherein the fluorescent dye is sensitive and specific to viscosity and has low background fluorescence; it can also be used as a fluorescent activated and lighted probe used for fluorescent labeling, quantification or monitoring of protein, enzymes or nucleic acid.

Compounds that may selectively inhibit Oplophorus luciferase-derived bioluminescent complexes, e.g., NanoBiT® bioluminescent complex, are disclosed as well as compositions and kits comprising the compounds, and methods of using the compounds.

Compounds that may selectively inhibit Oplophorus luciferase-derived bioluminescent complexes, e.g., NanoBiT® bioluminescent complex, are disclosed as well as compositions and kits comprising the compounds, and methods of using the compounds.

Various embodiments relate to compounds, having structures according to Structure A or Structure B, as specified herein. The compounds according to various embodiments may inhibit NT5C2 nucleotidase. The compounds according to various embodiments may synergistically decrease cell viability of NT5C2 R367Q mutant lymphoblasts when used in combination with 6-mercaptopurine (6-MP) to treat a cancer. The cancer may be, but is not limited to, acute lymphoblastic leukemia. Various embodiments relate to a compositions that may include one or more compounds according to any embodiment described herein or a pharmaceutically acceptable salt or derivative thereof and a pharmaceutically acceptable carrier. Various embodiments relate to methods of treating cancer. The method may comprise administering a therapeutically effective amount of one or more compounds according to any embodiment described herein or a pharmaceutically acceptable salt or derivative thereof.

Various embodiments relate to compounds, having structures according to Structure A or Structure B, as specified herein. The compounds according to various embodiments may inhibit NT5C2 nucleotidase. The compounds according to various embodiments may synergistically decrease cell viability of NT5C2 R367Q mutant lymphoblasts when used in combination with 6-mercaptopurine (6-MP) to treat a cancer. The cancer may be, but is not limited to, acute lymphoblastic leukemia. Various embodiments relate to a compositions that may include one or more compounds according to any embodiment described herein or a pharmaceutically acceptable salt or derivative thereof and a pharmaceutically acceptable carrier. Various embodiments relate to methods of treating cancer. The method may comprise administering a therapeutically effective amount of one or more compounds according to any embodiment described herein or a pharmaceutically acceptable salt or derivative thereof.

The present invention provides a maleate, phosphate, sulfate, hydrochloride of a cyclohexane derivative, N′-[trans-4-[2-[7-(benzo[b]thiophene)-7-piperazinyl]ethyl]cyclohexyl]-N,N-dimethylurea, as shown in Formula I and crystal forms thereof. The crystal forms have low hygroscopicity and good stability and are convenient for long-term storage and transportation; or the crystal forms have a long half-life in vivo, high bioavailability and small individual difference, and thus have obvious clinical application advantages.

##STR00001##

The present invention provides a maleate, phosphate, sulfate, hydrochloride of a cyclohexane derivative, N′-[trans-4-[2-[7-(benzo[b]thiophene)-7-piperazinyl]ethyl]cyclohexyl]-N,N-dimethylurea, as shown in Formula I and crystal forms thereof. The crystal forms have low hygroscopicity and good stability and are convenient for long-term storage and transportation; or the crystal forms have a long half-life in vivo, high bioavailability and small individual difference, and thus have obvious clinical application advantages.

##STR00001##

In one aspect, the present disclosure provides methods of preparing a secondary amine. In some embodiments, the secondary amine comprises two different groups or two identifical groups. Also provided herein are compositions for use in the preparation of the secondary amine.

An object of the present invention is to provide an α,β-unsaturated amide compound or a pharmaceutically acceptable salt or the like thereof having anticancer activity and the like. The α,β-unsaturated amide compound represented by the following formula (I) or a pharmaceutically acceptable salt or the like thereof has anticancer activity and the like:

##STR00001##

[wherein, “A” represents optionally substituted heterocyclic diyl, R.sup.1 represents hydrogen atom or optionally substituted lower alkyl, R.sup.2 represents optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted aliphatic heterocyclic group or optionally substituted aromatic heterocyclic group, X represents —O—, —S—, —SO.sub.2—, —NR.sup.X1— (wherein, R.sup.X1 represents hydrogen atom or lower alkyl), —CHR.sup.X2— (wherein, R.sup.X2 represents hydrogen atom or hydroxy), —CH═CH—, −CO— or —NH—CO—, and n1 and n2 are the same or different, and each represents 0 or 1].

An object of the present invention is to provide an α,β-unsaturated amide compound or a pharmaceutically acceptable salt or the like thereof having anticancer activity and the like. The α,β-unsaturated amide compound represented by the following formula (I) or a pharmaceutically acceptable salt or the like thereof has anticancer activity and the like:

##STR00001##

[wherein, “A” represents optionally substituted heterocyclic diyl, R.sup.1 represents hydrogen atom or optionally substituted lower alkyl, R.sup.2 represents optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted aliphatic heterocyclic group or optionally substituted aromatic heterocyclic group, X represents —O—, —S—, —SO.sub.2—, —NR.sup.X1— (wherein, R.sup.X1 represents hydrogen atom or lower alkyl), —CHR.sup.X2— (wherein, R.sup.X2 represents hydrogen atom or hydroxy), —CH═CH—, −CO— or —NH—CO—, and n1 and n2 are the same or different, and each represents 0 or 1].