A compound (npt-iib) with phosphate intestinal transmitter inhibitory activity, which can be used as an active component of a preparation for the treatment and / or prevention of hyperphosphate. 2. Compounds with active ingredients that inhibit activities as described in article 2b of the NPT and can be used as a preparation for the treatment and / or prevention of hyperphosphates. Therefore, they have manufactured an n-tienilbenzamida derivative, which is substituted by aminobenzene with the effect of npt-iib inhibitor.And that's how it is now. The n-tienilbenzamida derivatives substituted with carbamates have the inhibitory activity of npt-iib, which can be used as a preventive or therapeutic agent for hyperphosphates. 1. Claim 1: a formula compound (1) or one of its salts, X1 represents ch832220 u； K represents 1, 2 or 3； R 3 represents h or lower tar； x2 represents ch or N； 1 represents lower tar； R 1 represents h or lower tar； X3 represents ch or N； L 2 represents lower tar； R83099 is the tar of H or below； r8310 is h, the lower tar, the lower tar replaced by - or830404 of 1-2；-C (o) - lower asphalt, - S (o) - 8344； - lower asphalt, - lower asphalt, - n (lower asphalt) 832222；-R83044； r83044 heterocycle； r83044-phenyl, o-r83044； 83044-cyclopentyl, in which case one or two lower tar or C (or) - lower tar can be used to replace phenyl and cyclopentyl, y-r83044； and - r83044；R8304；； r830404 represents lower binding or tar； r830404 represents h or lower tar； m represents 0, 1 or 2； L3 represents lower tar； n represents 0 or 1； r8308 represents h, lower tar coo-r83044；-Low pressure tar - or83044；-Low pressure tar-nhr83044,-Low pressure tar-n (low pressure tar) 832222；O cycloquilo； L83088 represents an alliance, o-nr.83044 -；This is equivalent to - r83044； 83044 - monocyclic heterocycle - r83044； 83044；-R8304； - 830404-phenyl-r8304； - 830404；-Low pressure tar - No. 830404 - low pressure tar2. Lower or lower pitch or lower pitch can be replaced by a hydroxyl group； R2
