Abstract: Provided are an oral solid tablet comprising (S)-7-[4-(1-acryloylpiperidine)]-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide and preparation method therefor. The oral solid tablet has good drug release characteristics, features easy administration, quick and high-efficient release, no particular requirements on equipment, and a simple formulation preparation process, can ensure formulation stability and facilitate transportation and storage, and is suitable for large-scale production.

Abstract: The present invention relates to a bivalent platinum complex having a structure as shown in a formula (I). The complex has bright green light emission wavelengths, and can be used in the field of OLED organic electroluminescent materials. By means of the structural design, the present invention can improve the heavy atomic effect of phosphorescent materials, enhance spin-spin coupling, and achieve high-efficiency conversion of T1-S0, thereby achieving high luminous efficiency. Furthermore, a platinum complex molecule having an ONCN tetradentate ligand has the advantages of simple synthetic steps, relatively easy coordination and the like, and has may modifiable sites, which can be used for adjusting PL light emission wavelengths and thermal stability. The steric hindrance added by a carbazole group contained can effectively reduce the aggregation effect between molecules, avoid the formation of an exciplex, and further improve the color purity and the luminous efficiency.