Problem statement: Answer the multiple-choice question.
Query: Which compound exhibits a 18.243\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
[a] CN1CCN(c2nc3c(c(=O)[nH]2)CCC3)CC1
[b] Cc1cc(NC(=O)C(C)SCC(=O)Nc2nnc(CC(C)C)s2)no1
[c] CCOc1ccc(NC(=O)CN2CCN(c3ccccc3C)CC2)cc1S(=O)(=O)N1CCCC1
[d] COc1ccc(/C=N/NC(=S)Nc2cccc(C(=O)O)c2)cc1
Answer: a. CN1CCN(c2nc3c(c(=O)[nH]2)CCC3)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#}
CN1CCN(c2nc3c(c(=O)[nH]2)CCC3)CC1
CN1CCN(c2nc3c(c(=O)[nH]2)CCC3)CC1
2-(4-methylpiperazin-1-yl)-3,5,6,7-tetrahydrocyclopenta[d]pyrimidin-4-one