Abstract: An antimicrobial peptide composition comprising an antimicrobial peptide, at least one stabilizer, and a buffer system, the mass concentration of the antimicrobial peptide in the composition being 0.1‰ to 10‰; and the buffer system being a phosphate buffer system or an acetate buffer system; the amino acid sequence of the antimicrobial peptide being: KWKSFLKTFaAbKTVLHTALKAISS. The antimicrobial peptide composition is a broad-spectrum anti-infective drug suitable for various primary skin infections caused by pathogenic bacteria, especially drug-resistant bacteria, and secondary skin infections such as an eczema co-infection and an ulcer co-infection, including persistent infectious diseases such as diabetic foot, burn wound infections, and decubitus ulcer infections, and the composition has broad application prospects.

Abstract: A continuous FRP composite fiber truss shear connector is provided. The connector includes two folding line segments I and multiple folding line segments II. Multiple folding line segments II are connected in sequence end to end, and the two folding line segments I are respectively connected to the head end of the first folding line segment II and the tail end of the last folding line segment II; and the included angle between the adjacent folding line segments II is 20°-140°. The present disclosure achieves the rigid connection strength of walls, and can cut off thermal bridge connection so as to greatly improve the thermal insulation efficiency of precast concrete sandwich panels.

Abstract: The present invention belongs to the technical field of organic chemistry, and specifically relates to a method for preparing rosuvastatin sodium.

Abstract: The present invention belongs to the technical field of organic chemistry, and specifically relates to a method for preparing rosuvastatin sodium.

Abstract: The present invention belongs to the technical field of chemical catalysts, and particularly relates to a zinc 2-arylpropionate catalyst, a preparation method therefor and use thereof The structural formula of the zinc 2-arylpropionate catalyst of the present invention is one of the following structures. The catalyst can be used for homogeneous catalysis of a 1,2-aryl rearrangement reaction of ?-haloarylketal, and especially for synthesis of high yield and environmentally friendly 2-arylpropanonic acid non-steroidal anti-inflammatory analgesic drugs, such as, ibuprofen, ketoprofen, loxoprofen, flurbiprofen, fenoprofen, or naproxen and the like.

Abstract: The invention belongs to the technical field of organic chemistry, in particular being a method for preparing (+)-tricyclic hydroxyl lactone. The preparation of the (+)-tricyclic hydroxyl lactone compound in the prior art has lengthy steps, low stereoselectivity and high costs. The (+)-tricyclic hydroxyl lactone of the invention is obtained by an asymmetric oxidation reaction of prochiral tricyclic lactones in an organic solvent with an optically active Davis oxidant in the presence of an organic base. The method of the invention uses easily available raw materials, has low costs, good selectivity, and is suitable for large-scale preparation.