Problem statement: Answer the MCQ question.
Query: Which compound exhibits a 1.538\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a CCC(=O)Nc1cccc(C2=NOC3(C2)C[C@H](C(N)=O)N(C(=O)c2ccc(Cl)cc2)C3)c1
b O=c1cc(COc2ccccc2[N+](=O)[O-])nc2sccn12
c COC(CNc1ncnc2sc(-c3ccccc3)cc12)OC
d CCN(c1cccc(C)c1)S(=O)(=O)c1ccc2c3c(cccc13)C(=O)N2
Answer: b. O=c1cc(COc2ccccc2[N+](=O)[O-])nc2sccn12
{#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=c1cc(COc2ccccc2[N+](=O)[O-])nc2sccn12
O=c1cc(COc2ccccc2[N+](=O)[O-])nc2sccn12
7-[(2-nitrophenoxy)methyl]-[1,3]thiazolo[3,2-a]pyrimidin-5-one