Task: Answer the multiple-choice question.
Question: Which drug exhibits a -0.326\% 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 COc1cc(O)c(C(CCN2CCCCC2)c2cc(OC)c(OC)c(OC)c2)c(OC)c1
b Cc1nc2ncnn2c(N2CCN(C(c3ccccc3)c3ccccc3)CC2)c1C
c CN(CCOc1ccccc1)C(=O)c1cc(COc2c(F)cccc2F)on1
d CCN1CCCC1CNC(=O)Cn1nc(C)n2c(cc3cc(C)ccc32)c1=O
Answer: d. CCN1CCCC1CNC(=O)Cn1nc(C)n2c(cc3cc(C)ccc32)c1=O
{#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#}
CCN1CCCC1CNC(=O)Cn1nc(C)n2c(cc3cc(C)ccc32)c1=O
CCN1CCCC1CNC(=O)Cn1nc(C)n2c(cc3cc(C)ccc32)c1=O
2-(4,8-dimethyl-1-oxo-[1,2,4]triazino[4,5-a]indol-2-yl)-N-[(1-ethylpyrrolidin-2-yl)methyl]acetamide