Abstract: The compound as shown in formula (I) or a pharmaceutically acceptable salt or pharmaceutical composition thereof, and a preparation method therefor, and the use thereof as an MAT2A inhibitor. Ring A, ring Q, X, Y, X1, X2, L and R1 in formula (I) are as defined in the description.

Abstract: The present invention discloses a silicon multifunctional anti-slip mat comprising an anti-slip body formed by a woven mesh fabric and organic silicon portions provided at two sides of the woven mesh fabric; fillings are provided between the woven mesh fabric and each of the organic silicon portions; an anti-UV coating layer and a transparent coating layer are provided from bottom to top above the anti-slip mat body; an anti-corrosive coating layer is provided at a bottom portion of the anti-slip mat body. By providing organic silicon portions at two sides of the woven mesh fabric, the anti-slip mat is adhesive and capable of securely adhere to the rug/floor surface; besides, organic silicon surface is not contaminable and thus would not contaminate the rug/floor surface, thus overcoming the rugs/floor surfaces contamination problems of common anti-slip mats. It is colorless, odorless, clean, sanitary and aesthetically pleasing.

Abstract: An anti-slippery mat having a color-print layer, an upper material layer, a lower material layer and suction cups; the upper material layer and the lower material layer are pressed together by heat pressing and form a sealed integral body; a perimeter of the sealed integral body is a sealed edge formed by pressing force; the suction cups engage with a lower surface of the lower material layer by heat pressing; the color-print layer is positioned on an upper surface of the upper material layer; the upper material layer is an anti-abrasive PVC film layer; anti-slippery patterns or anti-slippery studs are arranged on the anti-abrasive PVC film layer; the lower material layer is a foam layer foamed after a plurality of PVC film layers are pressed against one another by heating pressing.