Task: Answer the MCQ question.
Query: Which drug exhibits a -7.540\% 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=C(NCCO)Nc1ccc2nsnc2c1
[b] CCOC(=O)C1=C(C)NC(=O)NC1/C=C/c1ccccc1
[c] COc1ccc(N(CC(=O)NCC2CCCO2)C(=O)CCC(=O)Nc2nccs2)cc1
[d] COC(=O)c1ccc(Oc2cc(C)nc(NCc3ccccc3)n2)cc1
Answer: a. O=C(NCCO)Nc1ccc2nsnc2c1
{#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(NCCO)Nc1ccc2nsnc2c1
O=C(NCCO)Nc1ccc2nsnc2c1
1-(2,1,3-benzothiadiazol-5-yl)-3-(2-hydroxyethyl)urea