Task: Answer the multiple-choice question.
Question: Which compound exhibits a 3.978% human ether-à-go-go related gene (hERG) inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a C/C(CCc1ccc2c(c1)OCO2)=N\N=C1\NC(=O)CC(C(=O)Nc2ccccc2)S1
b S=C(NCCc1ccccc1)Nc1ccc(Br)cn1
c CCOc1ccccc1NC(=O)COn1nnc2ccc(Cl)cc21
d CCc1ccc(OCC(=O)OC(C)C(=O)NC2CC2)cc1
Answer: b. S=C(NCCc1ccccc1)Nc1ccc(Br)cn1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
S=C(NCCc1ccccc1)Nc1ccc(Br)cn1
S=C(NCCc1ccccc1)Nc1ccc(Br)cn1
1-(5-bromopyridin-2-yl)-3-(2-phenylethyl)thiourea