2743
By contrast , 1 , 12 - diamino - 3 , 6 , 9 - triazadodecane ( SpmTrien ) , a charge - deficient spermine analog , was an extremely poor substrate of human recombinant SSAT2 and was metabolized by SSAT1 in HEPG2 cells and in wild - type primary hepatocytes .
 Chemical: 1 , 12 - diamino - 3 , 6 , 9 - triazadodecane; Chemical: SpmTrien; Chemical: spermine
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: 1 , 12 - diamino - 3 , 6 , 9 - triazadodecane; Chemical: SpmTrien; Chemical: spermine