Abstract: The invention provides a compound containing a 1,3-benzodioxol structure and a preparation method and use thereof. The invention discloses a 1,3-benzodioxol derivative as shown in general formula (1). Results of pharmacological experiments indicate that compound (I) of the invention can exert excellent inhibition on both BTK and JAK3 kinases, and can be used to prepare medicines for treating rheumatoid arthritis caused by over-activation of BTK and/or JAK3 pathways. The invention further discloses a preparation method for the 1,3-benzodioxol derivative.

Abstract: The present invention relates to Trash field. More particularly, the present invention relates to Trash can lid. The present invention provides a design of a big lid and a small lid. When an inhabitant usually disposes trash, he or she need only press a button to open the small lid. Since the small lid is connected with the big lid by magnetism and a spring buffer unit is installed in the seat of small lid, opening the small lid is very smooth, without any noise or vibration. When a dustman collects the trash, what he needs to do is only to open the big lid, being very convenient and sanitary.

Abstract: A dustbin relates to a composite dustbin that can be easily assembled by and disassembled into parts. It is also characterized by pretty appearance, small coverage of warehouse area, low transport fee and good market prospects.

Abstract: A dustbin with an adjustable height comprises an outside container body, an inside container body, a compression spring provided between the bottom of outside container body and the bottom of inside container body, a longitudinal row of grooves provided at the side wall of the inside container body and a level regulator provided at the side wall of the outside container body. The level regulator has a left end for embedding in the groove and a right end for coupling with a switch means to control the horizontal motion of the level regulator. The height of inside container body can be adjusted to satisfy the users of different heights by the level regulator.