Task: Answer the multiple choice question.
Question: Which compound has a 3.439\% human ether-à-go-go related gene (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 additional words.
Options:
a CCn1c(SCC(=O)c2cc(C)n(C)c2C)nnc1-c1ccccc1
b CCOC(=O)c1cc(CC)sc1NC(=O)CSc1nc2ccccc2c(=O)n1Cc1ccco1
c COC(=O)C(C(=O)Nc1ccc(OC)cc1)C1CCCCCC1
d Cc1cccc(-n2c(Cc3ccccc3)nnc2SCc2ccc([N+](=O)[O-])cc2)c1
Answer: b. CCOC(=O)c1cc(CC)sc1NC(=O)CSc1nc2ccccc2c(=O)n1Cc1ccco1
{#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 5-ethyl-2-[[2-[3-(furan-2-ylmethyl)-4-oxoquinazolin-2-yl]sulfanylacetyl]amino]thiophene-3-carboxylate