Task: Answer the MCQ question.
Query: Which compound exhibits a 2.133\% 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 additional words.
Options:
a.) CC1Nc2ncnc(N3CCc4ccccc4C3)c2N(Cc2ccc(Cl)cc2)C1=O.O=C(O)C(F)(F)F
b.) O=S(=O)(CCN1CCN(c2ccccn2)CC1)c1ccc(F)cc1
c.) COc1cc(CC(=O)Nc2ccccc2N2CCOCC2)cc(OC)c1OC
d.) COc1ccc(OC)c(-n2c(SCC(N)=O)nnc2-c2c[nH]c3ccccc23)c1
Answer: b. O=S(=O)(CCN1CCN(c2ccccn2)CC1)c1ccc(F)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=S(=O)(CCN1CCN(c2ccccn2)CC1)c1ccc(F)cc1
O=S(=O)(CCN1CCN(c2ccccn2)CC1)c1ccc(F)cc1
1-[2-(4-fluorophenyl)sulfonylethyl]-4-pyridin-2-yl-1,4-diazinane