Task: Answer the multiple-choice question.
Query: Which drug exhibits a 4.455\% human ether-à-go-go related gene (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] O=C1CSC(c2cccnc2)N1c1ccccc1
[b] COc1cc(CN2CCNC(=O)C2CC(=O)N2CCc3ccccc3C2)cc(OC)c1
[c] COCc1cc(C)nc(N/N=C/c2ccc(-c3ccc(C(=O)O)c(Cl)c3)o2)c1C#N
[d] O=S(=O)(c1cc(Cl)cc(Cl)c1)N1CCCC1c1nc2ccccc2s1
Answer: b. COc1cc(CN2CCNC(=O)C2CC(=O)N2CCc3ccccc3C2)cc(OC)c1
{#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#}
COc1cc(CN2CCNC(=O)C2CC(=O)N2CCc3ccccc3C2)cc(OC)c1
COc1cc(CN2CCNC(=O)C2CC(=O)N2CCc3ccccc3C2)cc(OC)c1
3-[2-(3,4-dihydro-1H-isoquinolin-2-yl)-2-oxoethyl]-4-[(3,5-dimethoxyphenyl)methyl]piperazin-2-one