Invention Grant
US07691898B2 Phosphonic acid derivatives and the treating agents of diseases related hyperphosphatemia 失效
膦酸衍生物和疾病相关高磷血症的治疗剂

Phosphonic acid derivatives and the treating agents of diseases related hyperphosphatemia
Abstract:
This invention related to a series of new phosphonic acid derivatives having anti-hyperphosphatemia activity. wherein: A is selected from —(CH2)n—, —CO—, —(CH2)n—CO—(CH2)m—, —(CH2)n—CS—(CH2)m— or a branched alkylene group, B ring and C ring are selected from a benzene ring, naphthalene ring, azulene ring or, heterocycle or fused heterocycle compound, D is —(CH2)(n+1)—, —(CH2)—O—(CH2)m—, —(CH2)—S(O)o—(CH2)m—, —CF3 or —(CH2)n—NR10—(CH2)m— wherein a D ring is connected with the carbon atom composing the C ring, E is selected from an oxygen atom or a sulfur atom, P is a phosphine atom, R1˜R7, wherein R1 and R2, R4 and R5 are joined together with neighbored carbon atom to form 5˜7 membered saturated or unsaturated hydrocarbon ring, or 5˜6 membered fused heterocycle, R1, R2 and R3 are not a hydrogen atom if the B ring is a benzene ring and may be the same or different and are substituents, R8 and R9 are may be the same or different and are substituents, R10 is an alkyl group, n and m are 0-10 and o is 0-2.
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