8 results about "Thiopyran" patented technology

The invention relates to the technical field of thiapyran processing, in particular to a drying device for thiapyran processing, which comprises a supporting seat, a drying box is arranged at the top of the supporting seat, a discharging box is arranged on one side of the drying box, the bottom of the discharging box is communicated with a discharging pipe, the interior of the drying box is connected with a splitter plate through a mounting mechanism, and a driving mechanism is further arranged on the supporting seat. The other side of the drying box is movably connected with a supporting plate, the supporting plate communicates with a feeding hopper, heaters are installed on the discharging box and the supporting plate, a temperature sensor is arranged in the drying box, and a controller is further arranged on the supporting base. Air flow is optimized through the splitter plate, hot air can be evenly distributed, it is ensured that thiapyran materials make full contact in the drying process, the heat transfer efficiency is improved, the drying time is shortened, the production efficiency is improved, temperature changes are monitored in real time, the problem of uneven drying caused by temperature fluctuation is avoided, uneven drying is prevented, and manual intervention is reduced.

This invention discloses a photosensitive supramolecular fluorescent polymer, its preparation method, and its anti-counterfeiting application in water, using trifluoroethyl methacrylate, hexafluorobutyl acrylate, 4-(acryloyloxy)butyl4-(2-methyl-3-(2-(2-methylbenzo[b]thiophen-3-yl)-4-oxo-5,6-2H-4H-thiaran[2,3-)b]thiaran-3-yl)benzo[b]thiophen-6-yl)-4-oxobutyrate, 4 This polymer was prepared by a simple one-step free radical copolymerization method using 1,1-(acryloyloxy)butyl3-(3,3,4,4,5,5-hexafluoro-2-(2-methyl-1,1-dioxide benzo[b]thiophene-3-yl)cyclopent-1-en-1-yl)-2-methylbenzo[b]thiophene-6-carboxylate 1,1-dioxide and phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide (photoinitiator-819) as raw materials. The polymer exhibits excellent multicolor light-switching performance, high stretch ratio, high self-healing efficiency, strong substrate adhesion, and antifouling properties, especially demonstrating excellent stability under strong acid, strong alkali, and high salt environments. The synthetic route is simple, and it has great application potential in underwater anti-counterfeiting and encryption technologies.

The present application provides a kind of singlet oxygen activated photo-cage chemiluminescence molecule, which has the structure shown in formula (I), wherein X is hydrogen or halogen, PC represents photo-cage group, R 1 It is an electron-withdrawing group containing oxygen and / or nitrogen, R 2 It is selected from adamantane, cyclobutane, methyl cyclobutyl formate and tetrahydrothiopyran-1,1-dioxide. The chemiluminescence molecule is activated by singlet oxygen and triggered by light of a specific wavelength, and through the processes of oxidation, photolysis, electron transfer, etc., an excited state benzoate structure is generated, which emits blue-green light when returning to the ground state. 2 Group, photo-cage group and R 1 Electron-withdrawing group synergistic effect, oxidation, photolysis, electron transfer, etc. process, generate excited state benzoate structure, it emits blue-green light when returning to the ground state.

The present application belongs to the field of organic chemical synthesis, and particularly relates to a thiepany spiroindolone compound and a synthesis method thereof. The present application takes MBH ester derived from oxidized indole and alpha-alkenol dithioester as starting materials, and prepares the target compound through a two-step one-pot reaction at room temperature in a specific base and solvent system. The synthesis strategy is novel, the reaction condition is mild, the operation is simple, efficient, and easy to operate, the raw materials and solvents are easy to obtain and controllable in cost, the reaction selectivity is high, the product yield is considerable, the substrate application range is wide, and the functional group tolerance is strong. The target product has clear in-vitro anti-tumor activity, definite application prospect, and outstanding industrialization potential, provides a new scheme for the preparation of thiepany spiroindolone compounds, and has strong popularization value.

This invention discloses a chiral indothothiaran compound, its catalytic synthesis method, and its application as a HIF inhibitor, belonging to the field of biomedicine. The structure of the chiral indothothiaran compound is shown in general formula 3. Its catalytic synthesis method includes the following steps: using an alkynyl ketone compound 1 and an indole-2-thione compound 2 as reactants, adding a chiral primary amine catalyst and an acid additive, reacting in a substituted benzene solvent at 25-40°C for 24-48 hours to obtain the chiral indothothiaran compound shown in general formula 3. The chiral indothothiaran compound synthesized by this invention exhibits good inhibitory activity against hypoxia-inducible factor (HIF) and can be used to prepare drugs for the prevention or treatment of diseases related to HIF. The target product of this invention is directly obtained from commercially available raw materials through simple conversion, reducing the synthetic difficulty and making it suitable for large-scale preparation.

A crystal polymorphism form of CGRP antagonist (R)-N-(3-(7-methyl-1H-indazol-5-yl)-1-(4-(1-methylpiperidin-4-yl)piperazin-1-yl)-1-oxopropan-2-yl)-4-(7-oxo-3,4,7,8-tetrahydro-2H-thiopyrano[2,3-b]pyridin-6-yl)piperidine-1-carboxamide, a preparation method therefor, a pharmaceutical composition containing the crystal form, and the use thereof in the treatment of related diseases.

The invention belongs to the technical field of medicine synthesis, and particularly relates to a dihydrobenzothiapyran compound as well as a synthesis method and application thereof. The structure of the dihydrobenzothiapyran compound is shown as a formula III or a formula IV. The invention also provides a synthesis method of the dihydrobenzothiapyran compound, which does not need a metal catalyst, is mild in reaction condition and wide in substrate applicability, and realizes controllable derivatization of the product.

The invention discloses a chiral indolothiapyran compound, a catalytic synthesis method thereof and application of the chiral indolothiapyran compound as an HIF inhibitor, and belongs to the field of biological medicine. The structure of the chiral indolothiapyran compound is shown as a general formula 3, and the catalytic synthesis method of the chiral indolothiapyran compound comprises the following steps: by taking an alkyne ketene compound 1 and an indole-2-thioketone compound 2 as reactants, adding a chiral primary amine catalyst and an acid additive, and reacting in a substituted benzene solvent at 25-40 DEG C for 24-48 hours to obtain the chiral indolothiapyran compound. The chiral indolothiapyran compound as shown in a general formula 3 is obtained. The synthesized chiral indolothiapyran compound has good hypoxia-inducible factor HIF inhibitory activity, and can be used for preparing drugs for preventing or treating diseases related to hypoxia-inducible factors (HIF). The target product is directly obtained from commercially available raw materials through simple conversion, the synthesis difficulty is reduced, and the method is suitable for large-scale preparation.