5results about How to "New structure" patented technology

A class of novel mubezhiside compounds, their preparation, and applications, including: mubezhiside A and mubezhiside B. This invention removes impurities directly via macroporous lipid column chromatography after boiling in water, simultaneously removing both aqueous and lipid-soluble impurities with high efficiency. Following impurity removal, silica gel column chromatography is used for purification, allowing for significantly larger sample loading and shorter processing time compared to ODS column chromatography. Preparative HPLC is employed for final purification, greatly improving the purification effect.

The present invention discloses a curtain blade flipping mechanism for a double-glazed built-in Venetian blind, comprising a corner joint, a controller assembly, a transmission assembly, a steering assembly and a curtain blade flipping assembly, wherein the outer controller comprises a first turntable, in which a first magnet combination is arranged, the follower comprises a second turntable, in which a second magnet combination is arranged, and a first bevel tooth is arranged on the circumference side wall of the second turntable, the transmission assembly comprises a rotating wheel and a transmission rod, the circumference side wall of the rotating wheel is provided with a second bevel tooth and has a non-circular through hole, the transmission rod has a cross-section matching the through hole and is nested in the through hole, and the steering assembly is arranged in the corner joint, the first bevel tooth on the circumference of the second turntable of the present invention is meshed with the second bevel tooth on the transmission rod, and the steering assembly is driven by the transmission rod to realize the rotation of the flip shaft, thereby improving the conventional method of realizing the rotation of the flip shaft by a flip rope, and flipping is performed by a mechanical connection structure, and the components have better coordination.

This invention relates to the field of aggregation-induced emission materials, specifically to a [3]-axylene luminescent material with aggregation-induced emission properties, its preparation method, and its applications. This invention is the first to combine the [3]-axylene core structure with aggregation-induced emission characteristics, providing a novel class of AIE molecules, enriching the molecular library of AIE materials, and possessing potential application value in chemical sensing, optoelectronics, biological fluorescent probes, and bioimaging.

Yohimbine derivatives, their preparation methods, and uses. This invention discloses compounds of Formula I and pharmaceutical compositions comprising compounds of Formula I. The compounds of Formula I of this invention, as adrenaline receptor α2A (ADRA2A) antagonists or partial antagonists, can treat and / or prevent inflammatory bowel disease (IBD), particularly ulcerative colitis (UC), Crohn's disease (CD), or enteritis.

The invention relates to the technical field of extreme pressure anti-wear agents, in particular to an extreme pressure anti-wear agent, a method for preparing the extreme pressure anti-wear agent and a cross-axle universal joint grease containing the agent. The invention uses a phosphite ester and cyanuric acid and its derivatives under weak base catalysis to carry out an ester exchange reaction to generate a partially monosubstituted or partially disubstituted phosphite extreme pressure and anti-wear additive, which is prepared in a cross-axle universal joint grease. Since a nitrogen-containing aromatic structure is introduced into the molecule, the adsorption and film-forming ability of the phosphite ester is enhanced, thereby improving the extreme pressure and anti-wear properties of the grease. At the same time, a longer atomic group is introduced into the molecule, so that the acidity of the phosphite ester is reduced, thereby improving the problem of severe corrosion.