IP27 N- (phenoxyethyl) imidazo [1,2-a] pyridine-3-amide compound and preparation method thereof


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IP28 Benzothiazin-4-one compound containing 2,7-diazaspiro [3.5] nonane fragment and preparation method thereof


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IP28 Benzothiazin-4-one compound containing 2,7-diazaspiro [3.5] nonane fragment and preparation method thereof