17670
Aiming at the design of specific melanocortin - 1 receptor ( MC1R ) targeted imaging probes , we report on the effect of different azolyl - ring substitution patterns ( carboxylate at the 4 - position and / or methyl groups at the 3 , 5 positions ) of pyrazolyl - diamine bifunctional chelators ( Pz ( 2 ) - Pz ( 4 ) ) on the pharmacokinetic profile of the ( 99m ) Tc ( CO ) 3 - labeled lactam bridge - cyclized alpha - melanocyte stimulating hormone derivative , beta AlaNleCycMSH ( hex ) .
 Chemical: azolyl; Chemical: carboxylate; Chemical: methyl; Chemical: pyrazolyl - diamine; Chemical: ( 99m ) Tc ( CO ) 3; Chemical: lactam; Chemical: cyclized alpha - melanocyte stimulating hormone; Chemical: beta AlaNleCycMSH ( hex )
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: azolyl; Chemical: carboxylate; Chemical: methyl; Chemical: pyrazolyl - diamine; Chemical: ( 99m ) Tc ( CO ) 3; Chemical: lactam; Chemical: cyclized alpha - melanocyte stimulating hormone; Chemical: beta AlaNleCycMSH ( hex )