| abstract |
(57) Summary The present invention relates to compounds of formula (PY) and salts of compounds of formula (PY). Here, P represents a colored portion, and Y represents a dendrimer group of the formula (I). Here, R1, R2 and R3 represents hydrogen or X1, X2, X3 or X4, X1 represents an example wherein (X 1), wherein, Z is - ((CH 2) n1 -W ) n2 - the expressed, wherein, W is represents -O- or -NH-CO-, n1 represents 2 to 6, n2 represents 0~3, Y 1, Y 2, Y 3 and Y 4 is -OH, -NH 2 or represents e.g. 4-hydroxymethyl-1-phenoxyacetic acid (L 1), p-hydroxymethyl phenol linker (L 2) group obtained after reacting a linker such as. |