Task: Answer the MCQ question.
Question: Which drug exhibits a -18.721% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a O=C(Nc1cccc(C(=O)N2CCOCC2)c1)c1ccc([N+](=O)[O-])cc1
b Cc1ccc2c(c1)N(C(=O)CCC(=O)N1CCN(c3cccc(C)c3C)CC1)CCO2
c COc1ccc(NC(=O)CCS(=O)(=O)c2cc3c(cc2C)NC(=O)CO3)cc1
d Cc1c(NC(=O)c2cc3nc(-c4ccc(Cl)cc4)cc(C(F)(F)F)n3n2)c(=O)n(-c2ccccc2)n1C
Answer: b. Cc1ccc2c(c1)N(C(=O)CCC(=O)N1CCN(c3cccc(C)c3C)CC1)CCO2
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
Cc1ccc2c(c1)N(C(=O)CCC(=O)N1CCN(c3cccc(C)c3C)CC1)CCO2
Cc1ccc2c(c1)N(C(=O)CCC(=O)N1CCN(c3cccc(C)c3C)CC1)CCO2
1-[4-(2,3-dimethylphenyl)piperazin-1-yl]-4-(6-methyl-2,3-dihydro-1,4-benzoxazin-4-yl)butane-1,4-dione