Problem statement: Answer the multiple-choice question.
Question: Which drug has a 16.790\% 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] COC(=O)CSc1nc(C)c2ccc(OC)cc2n1
[b] CC(C)N(CCCNC(=O)Cn1ncc2c([nH]c3ccccc32)c1=O)Cc1ccccc1
Answer: a. COC(=O)CSc1nc(C)c2ccc(OC)cc2n1
{#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)CSc1nc(C)c2ccc(OC)cc2n1
COC(=O)CSc1nc(C)c2ccc(OC)cc2n1
methyl 2-(7-methoxy-4-methylquinazolin-2-yl)sulfanylacetate