Problem statement: Answer the multiple-choice question.
Question: Which compound has a 7.148\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. COc1ccc(Nc2nnc(SCC(=O)N3CCCC3)s2)cc1
b. CCc1ccc(S(=O)(=O)Nc2ccc(-c3nc4cccnc4s3)cc2)s1
Answer: a. COc1ccc(Nc2nnc(SCC(=O)N3CCCC3)s2)cc1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_1uM#}{herg_central_at_1uM__units} {herg_central_at_1uM__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_central_at_1uM%}
Answer: {%multiple_choice_result}. {SMILES#}
2-[[5-(4-methoxyanilino)-1,3,4-thiadiazol-2-yl]sulfanyl]-1-pyrrolidin-1-ylethanone