| 摘要 |
PCT No. PCT/EP91/01718 Sec. 371 Date Mar. 3, 1993 Sec. 102(e) Date Mar. 3, 1993 PCT Filed Sep. 10, 1991 PCT Pub. No. WO92/04369 PCT Pub. Date Mar. 19, 1992.5-Aminosalicylic acid derivatives acylated at the amino group with glutamic or aspartic acid and/or having the carboxy group involved in a peptide bond with the leucyl-prolyl residue are useful as pro-drugs of 5-aminosalicylic acid. |
