Task: Answer the MCQ question.
Question: Which drug exhibits a 16.335\% 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: O=S(=O)(c1ccccc1)N1CCC(N2CCCCCC2)CC1
b: CCN(CC)CCNC(=O)CCc1nnc2ccc(N3CCC(C)CC3)nn12
c: COc1ccc(-c2cc(C(=O)Nc3ccc(Br)cc3)no2)cc1
d: Cc1nnc(SCC(=O)NC2CCCC2)n1C(C)C
Answer: b. CCN(CC)CCNC(=O)CCc1nnc2ccc(N3CCC(C)CC3)nn12
{#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#}
CCN(CC)CCNC(=O)CCc1nnc2ccc(N3CCC(C)CC3)nn12
CCN(CC)CCNC(=O)CCc1nnc2ccc(N3CCC(C)CC3)nn12
N-[2-(diethylamino)ethyl]-3-[6-(4-methylpiperidin-1-yl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl]propanamide