Task: Answer the MCQ question.
Question: Which compound exhibits a -29.631\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
(a) CC(C)(C)c1csc(NC(=O)c2cccs2)n1
(b) CCOC(=O)C1=C(N)OC2=C(C(=O)CCC2)C1c1ccc(C)s1
(c) CC(=O)OC(C#CCN1CCOCC1)c1ccccc1
(d) COC(=O)c1cccc(NC(=O)Nc2ccc(Cl)c(Cl)c2)c1
Answer: b. CCOC(=O)C1=C(N)OC2=C(C(=O)CCC2)C1c1ccc(C)s1
{#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#}
ethyl 2-amino-4-(5-methylthiophen-2-yl)-5-oxo-4,6,7,8-tetrahydrochromene-3-carboxylate