The present invention relates to an endothelin receptor antagonist conjugate of the formula (I) wherein R
2
is an alkoxy group and one of R
1
and R
3
represents an alkoxy group and the other represents a group of the formula: (OCH
2
CH
2
)
n
—NH—X, wherein n is an integer of
1
to
100
and X represents a fluorescent dye and tautomers thereof. Furthermore, the present invention relates to a diagnostic composition comprising the compounds of the invention. The present invention also relates to the use of the compounds of the invention for the preparation of a diagnostic composition for the diagnosis of cancer, the evaluation of cancer biology and/or monitoring of anticancer therapy. In a further aspect, the present invention relates to kits comprising the compounds of the invention.
本发明涉及一种内皮素受体拮抗剂共轭物的公式(I),其中R2是烷氧基,R1和R3中的一个代表烷氧基,另一个代表公式(OCH2CH2)n-NH-X的基团,其中n是1至100的整数,X代表荧光
染料及其互变异构体。此外,本发明还涉及一种诊断组合物,包括本发明中的化合物。本发明还涉及使用本发明中的化合物制备诊断组合物,用于诊断癌症、评估癌症
生物学和/或监测抗癌治疗。在另一个方面,本发明涉及包含本发明中的化合物的试剂盒。