abstract |
(57) Summary The present invention relates to a complex represented by the following formula for use as a contrast agent in diagnostic imaging: Wherein, R, R ', R 1 , R' 1, R 2, R '2, R 3, R' 3, R 4, R '4, R 5, R' 5, R 6, R '6, R 7, R '7, R 8, R' 8, R 9, R '9, M, X, Y, Z and n are as defined in the specification. |