Task: Answer the multiple-choice question.
Question: Which drug exhibits a 0.310\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a.) O=CNCCc1nc2ccccc2n1CCc1ccccc1
b.) CC(=O)N1N=C(c2cccnc2)OC1c1ccc(C(C)C)cc1
c.) COC(=O)c1sccc1NC(=O)Nc1ccccc1OC
Answer: c. COC(=O)c1sccc1NC(=O)Nc1ccccc1OC
{#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#}
COC(=O)c1sccc1NC(=O)Nc1ccccc1OC
COC(=O)c1sccc1NC(=O)Nc1ccccc1OC
methyl 3-[(2-methoxyphenyl)carbamoylamino]thiophene-2-carboxylate