| 摘要 |
alpha , omega -BIS-[5-(DIHYDROXYALKYL) AMINOCARBONYL-3-HYDROXYACYL-AMINO-2,4,6-TRIIODO-BENZOYL-AMINO]-OXAALKANE COMPOUNDS OF THE FORMULA <IMAGE> wherein R1 is <IMAGE> R and R' are hydrogen or methyl, R2 is dihydroxyalkyl having 3 or 4 carbon atoms, N IS 2 OR 3, M IS AN INTEGER BETWEEN 1 AND 5, AND N(M+1) IS AN INTEGER BETWEEN 4 AND 12, ARE READILY SOLUBLE IN WATER TO YIELD INJECTABLE RADIOPAQUE CONTRAST COMPOSITIONS WHICH ARE WELL TOLERATED AND STABLE. The compounds are prepared in good yields by reacting a reactive derivative of a 5-(di-hydroxyalkyl)aminocarbonyl-3-acyloxyacylamino-2,4,6-triiodo-benzoic acid with an alpha , omega -diamino-oxaalkane of the formula R-NH-CnH2n-(O-CnH2n)-NH-R. |
