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The invention belongs to the technical field of medicines, and discloses application of a compound M1 shown as a formula (I) and pharmacodynamically acceptable salt thereof in preparation of medicines for preventing, relieving and / or treating autoimmune demyelination diseases. On a mouse experimental autoimmune encephalomyelitis model, the compound M1 shows a good treatment effect, can effectively prevent and treat pathological changes and disease progression of diseases, relieve the severity of the diseases and inhibit LPS-stimulated microglial BV2 cells from releasing inflammatory mediators, and provides a new drug and a new structure for clinical treatment.

The application relates to the technical field of bridge erecting machines and discloses an integrated flow distribution valve group arranged in a pump station and comprising m oil inlets, each of which is connected with different control oil paths; n oil outlets, the distal ends of the oil pipes connected with each oil outlet being total oil inlets, the total oil inlets being connected to adjacent execution groups; m*n one-way valves, each oil inlet being connected to n oil outlets through n parallel pipelines, and n one-way valves being arranged in the n parallel pipelines one by one; and front-end oil pipes of all the one-way valves corresponding to one oil inlet meeting in the valve group, and rear-end oil pipes of all the one-way valves corresponding to one oil outlet meeting in the valve group. The integrated flow distribution valve group solves the problems of too long total length of oil pipes and poor pipe arrangement process in the traditional oil pipe arrangement scheme.