Problem statement: Answer the MCQ question.
Query: Which drug exhibits a -2.956\% 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) CCOC(=O)C1=C(O)C(=O)N(Cc2ccccc2)CC1
(b) CN1C(=O)C(C)(C)c2cc(S(=O)(=O)NCCc3ccc(Cl)cc3)ccc21
Answer: b. CN1C(=O)C(C)(C)c2cc(S(=O)(=O)NCCc3ccc(Cl)cc3)ccc21
{#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#}
CN1C(=O)C(C)(C)c2cc(S(=O)(=O)NCCc3ccc(Cl)cc3)ccc21
CN1C(=O)C(C)(C)c2cc(S(=O)(=O)NCCc3ccc(Cl)cc3)ccc21
N-[2-(4-chlorophenyl)ethyl]-1,3,3-trimethyl-2-oxoindole-5-sulfonamide