Azide derivatives suitable for preparation of ?99mÕtc complexes for imaging and their use

摘要

A compound which can be complexed with 99mTc, has the formula T-R-Y wherein T is a targeting group derived from a molecule T' which has an affinity to a specific body tissue said targeting group essentially retaining the specific affinity of said molecule; R is a branched or straight alkane chain having 1 to 6 carbon atoms; and Y is azide-N3. The complexion product of 99mTc and the above compound is useful for in vivo radio-imaging.