Task: Answer the multiple-choice question.
Question: Which compound exhibits a 4.512\% 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)C1C2CCC(C2)C1C(=O)NCCCn1ccnc1
b: O=C1CCCC2=C1C(c1ccccc1)CC(=O)N2c1ccccc1
c: CC(C)(C)c1ccc(C(=O)N2CCCN(c3ccc([N+](=O)[O-])cn3)CC2)cc1
d: CCN(CC)c1ccc(C=O)o1
Answer: b. O=C1CCCC2=C1C(c1ccccc1)CC(=O)N2c1ccccc1
{#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=C1CCCC2=C1C(c1ccccc1)CC(=O)N2c1ccccc1
O=C1CCCC2=C1C(c1ccccc1)CC(=O)N2c1ccccc1
1,4-diphenyl-4,6,7,8-tetrahydro-3H-quinoline-2,5-dione