Problem statement: Answer the multiple-choice question.
Question: Which drug exhibits a -6.250\% 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 additional words.
Options:
a. CCOC(=O)CC(=O)CSCC(=O)Nc1ccc(C)cc1
b. CC(C)(C)c1cc(=O)n2c(C#N)c(C#N)nc2[nH]1
c. CCOc1ccc(-c2nnc3n2N=C(c2ccc(OC)cc2)CS3)cc1
d. COc1ccc(OC)c(S(=O)(=O)N2CCCc3ccccc32)c1
Answer: a. CCOC(=O)CC(=O)CSCC(=O)Nc1ccc(C)cc1
{#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#}
ethyl4-[2-(4-methylanilino)-2-oxoethyl]sulfanyl-3-oxobutanoate