Task: Answer the multiple-choice question.
Query: Which drug exhibits a 1.387\% 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(C1CCN(S(=O)(=O)c2ccc(F)cc2)CC1)N1CC=C(c2ccccc2)CC1
(b) O=C(CSc1nc(=O)n(CCN2CCOCC2)c2c1CCCC2)Nc1ccc([N+](=O)[O-])cc1
Answer: b. O=C(CSc1nc(=O)n(CCN2CCOCC2)c2c1CCCC2)Nc1ccc([N+](=O)[O-])cc1
{#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(CSc1nc(=O)n(CCN2CCOCC2)c2c1CCCC2)Nc1ccc([N+](=O)[O-])cc1
O=C(CSc1nc(=O)n(CCN2CCOCC2)c2c1CCCC2)Nc1ccc([N+](=O)[O-])cc1
2-[[1-(2-morpholin-4-ylethyl)-2-oxo-5,6,7,8-tetrahydroquinazolin-4-yl]sulfanyl]-N-(4-nitrophenyl)acetamide