Task: Answer the multiple-choice question.
Query: Which drug has a 18.214\% 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] COc1ccc(NC(=O)[C@@H](NC(=O)c2ccccc2F)C(C)C)cc1S(=O)(=O)N1CCOCC1
[b] O=C(N/N=C/c1cc(Cl)ccc1O)c1ccc(Br)cc1
[c] COc1ccccc1CNC(=O)c1ccc2c(=O)n(CCCN3CCCC3=O)c(=S)[nH]c2c1
[d] CCOC(=O)c1ccc(NC(=O)C2(c3ccc(OC)cc3)CCOCC2)cc1
Answer: b. O=C(N/N=C/c1cc(Cl)ccc1O)c1ccc(Br)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(N/N=C/c1cc(Cl)ccc1O)c1ccc(Br)cc1
O=C(N/N=C/c1cc(Cl)ccc1O)c1ccc(Br)cc1
4-bromo-N-[(E)-(5-chloro-2-hydroxyphenyl)methylideneamino]benzamide