Problem statement: Answer the MCQ question.
Question: Which drug exhibits a 13.425\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a) O=C(NCCc1c[nH]c2ccccc12)C(=O)NCC1OCCCN1S(=O)(=O)c1ccccc1
b) CC1C(C)C(O)(c2ccccc2)CCN1C
Answer: b. CC1C(C)C(O)(c2ccccc2)CCN1C
{#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#}
CC1C(C)C(O)(c2ccccc2)CCN1C
CC1C(C)C(O)(c2ccccc2)CCN1C
1,2,3-trimethyl-4-phenylpiperidin-4-ol