Problem statement: Answer the multiple-choice question.
Query: Which drug exhibits a -18.433\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
[a] CN(CC(=O)NCCc1ccc(S(N)(=O)=O)cc1)Cc1ccc(Cl)cc1Cl
[b] CCN1CCN(c2ncnc3scc(-c4ccc(OC)cc4)c23)CC1
[c] O=C(O)c1ccccc1NS(=O)(=O)c1cccc(-n2sc3ccccc3c2=O)c1
Answer: b. CCN1CCN(c2ncnc3scc(-c4ccc(OC)cc4)c23)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#}
CCN1CCN(c2ncnc3scc(-c4ccc(OC)cc4)c23)CC1
CCN1CCN(c2ncnc3scc(-c4ccc(OC)cc4)c23)CC1
4-(4-ethylpiperazin-1-yl)-5-(4-methoxyphenyl)thieno[2,3-d]pyrimidine