Task: Answer the multiple-choice question.
Question: Which compound has a 7.428\% 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 O=C(O)C1CSC(CCc2ccccc2)N1
b COc1ccc(NC(=O)C2CCCN2S(=O)(=O)c2ccc3c(c2)CCC(=O)N3)cc1Cl
c O=C(OCc1nnc(-c2ccccc2)o1)c1ccc([N+](=O)[O-])s1
d Cc1ccc(-n2c(C)nc3ccccc3c2=O)c(C)c1
Answer: a. O=C(O)C1CSC(CCc2ccccc2)N1
{#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#}
O=C(O)C1CSC(CCc2ccccc2)N1
O=C(O)C1CSC(CCc2ccccc2)N1
2-(2-phenylethyl)-1,3-thiazolidine-4-carboxylic acid