摘要 |
Light emitting compounds of the formula: where R<SUB>1 </SUB>is a light-emitting moiety, R<SUB>2 </SUB>is a bombesin-like peptide and fragment, derivative or analog thereof and L is a linker moiety, which may be present or absent. The peptide is linked at a first amino acid position to (C-X) which, in turn, is selected from the group including C-O, C-S, CH(OH), C-C=O, C-NH, CH<SUB>2</SUB>, CH(OR), CH(NR), CH(R), CR<SUB>3</SUB>R<SUB>4</SUB>, and C(OR<SUB>3</SUB>)OR<SUB>4 </SUB>where R, R<SUB>3</SUB>, and R<SUB>4 </SUB>are alkyl moieties or substituted alkyl moieties. Optionally the compound may include a linker moiety between the peptide and the C-X binding group. Preferably, the compound exhibits substantial biological activity in the presence of receptors having affinities for bombesin-like peptides.
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