13034
This study resulted in the identification of three new compounds with antiviral activity ; 2 - ( 4 - { [ 3 - ( 4 - fluorophenyl ) - 1 , 2 , 4 - oxadiazol - 5 - yl ] methyl } ) - 1 - piperazinyl ) - N - ( 4 - methylphenyl ) acetamide ( 7 ) , 3 - ( 2 - ethoxyphenyl ) - 5 - [ [ 4 - ( 4 - nitrophenyl ) piperazin - 1 - yl ] methyl ] - 1 , 2 , 4 - oxadiazole ( 17 ) , and N - [ 4 - ethoxy - 3 - ( 1 - piperidinylsulfonyl ) phenyl ] - 2 - ( imidazo [ 2 , 1 - b ] [ 1 , 3 ] thiazol - 6 - yl ) acetamide ( 18 ) , with compound 7 being the most potent of these hits .
 Chemical: 2 - ( 4 - { [ 3 - ( 4 - fluorophenyl ) - 1 , 2 , 4 - oxadiazol - 5 - yl ] methyl } ) - 1 - piperazinyl ) - N - ( 4 - methylphenyl ) acetamide; Chemical: 3 - ( 2 - ethoxyphenyl ) - 5 - [ [ 4 - ( 4 - nitrophenyl ) piperazin - 1 - yl ] methyl ] - 1 , 2 , 4 - oxadiazole; Chemical: N - [ 4 - ethoxy - 3 - ( 1 - piperidinylsulfonyl ) phenyl ] - 2 - ( imidazo [ 2 , 1 - b ] [ 1 , 3 ] thiazol - 6 - yl ) acetamide
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: 2 - ( 4 - { [ 3 - ( 4 - fluorophenyl ) - 1 , 2 , 4 - oxadiazol - 5 - yl ] methyl } ) - 1 - piperazinyl ) - N - ( 4 - methylphenyl ) acetamide; Chemical: 3 - ( 2 - ethoxyphenyl ) - 5 - [ [ 4 - ( 4 - nitrophenyl ) piperazin - 1 - yl ] methyl ] - 1 , 2 , 4 - oxadiazole; Chemical: N - [ 4 - ethoxy - 3 - ( 1 - piperidinylsulfonyl ) phenyl ] - 2 - ( imidazo [ 2 , 1 - b ] [ 1 , 3 ] thiazol - 6 - yl ) acetamide