Task: Answer the multiple choice question.
Query: Which compound has a 18.996\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: Cn1ccnc1C(O)c1cc(C(C)(C)C)c(O)c(C(C)(C)C)c1
b: O=C(NC1CCCCC1)C(c1ccco1)N(C(=O)c1csnn1)c1cccc(Cl)c1
Answer: b. O=C(NC1CCCCC1)C(c1ccco1)N(C(=O)c1csnn1)c1cccc(Cl)c1
{#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#}
O=C(NC1CCCCC1)C(c1ccco1)N(C(=O)c1csnn1)c1cccc(Cl)c1
O=C(NC1CCCCC1)C(c1ccco1)N(C(=O)c1csnn1)c1cccc(Cl)c1
N-(3-chlorophenyl)-N-[2-(cyclohexylamino)-1-(furan-2-yl)-2-oxoethyl]thiadiazole-4-carboxamide