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    • 85. 发明专利
    • Pro-drugs
    • GB0404953D0
    • 2004-04-07
    • GB0404953
    • 2004-03-04
    • ARAKIS LTD
    • C07C66/02C07D307/12C07D309/10
    • Compounds that may have anti-inflammatory activity are of general formula (I); wherein X1, is H or COR1, and X2 is H or COR2 but X1, and X2 are not both H; R1 and R2 are the same or different and are each C1-4 alkyl substituted with R3, or a four to seven-membered ring which can be optionally substituted with R8 and can contain one or more additional heteroatoms selected from O, S(O)n and NR9; is R3 is F, CF3, OR4, NR5R6 O, S(O)n R7; R4, R5 and R6 are the same or different and are each H or C1-4 alkyl optionally substituted with R3, or NR5R6 is a C4-6 heterocycloalkyl ring containing one or more heteroatoms selected from O, NR8 and S(O)n; each n is 0-2; R7 is C1-4 alkyl; R8 is as defined for R3 or C1-4 alkyl optionally substituted with R3 or halogen; and R9 is H or C1-4 alkyl; or a salt, solvate or hydrate thereof.