Task: Answer the MCQ question.
Query: Which drug has a 1.946\% 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) CN(C)S(=O)(=O)c1ccc(NC(=O)CSc2n[nH]c(=O)n2C2CC2)cc1
b) O=C1CC(Cc2ccc(Cl)cc2)C(=O)N1c1ccncc1
c) CCN(C(=O)Cn1c(=O)oc2ccccc21)c1ccc(C)c(C)c1
d) COc1ccc(/C(O)=C2\C(=O)C(=O)N(CCN(C)C)C2c2cccc(OC)c2OC)cc1
Answer: b. O=C1CC(Cc2ccc(Cl)cc2)C(=O)N1c1ccncc1
{#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=C1CC(Cc2ccc(Cl)cc2)C(=O)N1c1ccncc1
O=C1CC(Cc2ccc(Cl)cc2)C(=O)N1c1ccncc1
3-[(4-chlorophenyl)methyl]-1-pyridin-4-ylpyrrolidine-2,5-dione