| 摘要 |
PCT No. PCT/JP96/00780 Sec. 371 Date Sep. 25, 1997 Sec. 102(e) Date Sep. 25, 1997 PCT Filed Mar. 26, 1996 PCT Pub. No. WO96/30019 PCT Pub. Date Oct. 3, 1996Compounds represented by the general formula: (where R1 is one member selected from the group consisting of CH2, CH2CH2, CH2O, CH2S and CH2SO; R2 is a hydrogen atom or a lower alkyl group having 1-4 carbon atoms or a benzyl group; R3 is a group represented by the general formula COOR4, the general formula NHCOR5, the general formula CONR6R7, PO3H2 or SO3H; and n is an integer of 1-4) or salts therof are useful as therapeutic agents of autoimmune diseases such as systemic lupus erythematosus and nephritic diseases such as glomerulonephritis.
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