Task: Answer the multiple choice question.
Query: Which drug has a 2.547\% 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 other words.
Options:
a. COc1ccc(N2CCN(C(=O)CN(c3cccc(Br)c3)S(C)(=O)=O)CC2)cc1
b. O=C(NC1=NCCS1)NC12CC3CC(CC(C3)C1)C2
c. COc1cc(CN2CCCC(N3CCN(c4ccccc4C)CC3)C2)ccc1O
d. Cc1ccc(C(=O)Nc2nc(C)c(C)s2)o1
Answer: a. COc1ccc(N2CCN(C(=O)CN(c3cccc(Br)c3)S(C)(=O)=O)CC2)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#}
COc1ccc(N2CCN(C(=O)CN(c3cccc(Br)c3)S(C)(=O)=O)CC2)cc1
COc1ccc(N2CCN(C(=O)CN(c3cccc(Br)c3)S(C)(=O)=O)CC2)cc1
N-(3-bromophenyl)-N-[2-[4-(4-methoxyphenyl)piperazin-1-yl]-2-oxoethyl]methanesulfonamide