Task: Answer the multiple-choice question.
Question: Which compound has a 3.028\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a.) COc1ccccc1OCCNC(=O)c1cccs1
b.) CC(=O)N1CCN(C2c3cccc4cccc(c34)C2NS(=O)(=O)c2ccccc2)CC1
c.) CC(C)c1cc(C(C)C)c(S(=O)(=O)N2CCNCC2)c(C(C)C)c1
d.) COc1ccc(NCc2nc3ccccc3n2C)cc1
Answer: a. COc1ccccc1OCCNC(=O)c1cccs1
{#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#}
N-[2-(2-methoxyphenoxy)ethyl]thiophene-2-carboxamide