Task: Answer the MCQ question.
Question: Which drug exhibits a 11.299\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: O=C(COC(=O)CCc1nc2ccccc2c(=O)[nH]1)Nc1ccccc1Cl
b: COc1cc(O)cc2c1[C@@H]1Oc3c(ccc(O)c3CC=C(C)C)[C@@H]1CO2
Answer: a. O=C(COC(=O)CCc1nc2ccccc2c(=O)[nH]1)Nc1ccccc1Cl
{#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(COC(=O)CCc1nc2ccccc2c(=O)[nH]1)Nc1ccccc1Cl
O=C(COC(=O)CCc1nc2ccccc2c(=O)[nH]1)Nc1ccccc1Cl
[2-(2-chloroanilino)-2-oxoethyl] 3-(4-oxo-3H-quinazolin-2-yl)propanoate