Task: Answer the multiple-choice question.
Query: Which compound exhibits a 12.681\% 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, d, or e without using any additional words.
Options:
a CCc1nc(SCC(=O)Nc2cc(C)ccc2OC)c2c(C)c(C)sc2n1
b COc1ccc(OC)c(NC(=O)c2ccc3c(c2)C(=O)N(c2ccc(OC(C)=O)cc2)C3=O)c1
c O=C(c1ccc2c(=O)n3c(nc2c1)CCCCC3)N1CCCCC1
d Cc1ccc(N2C(N)=NC(N)=NC23CCCC3)c(C)c1.Cl
e O=C(Nc1nccs1)c1cc2c(s1)CCCCC2
Answer: a. CCc1nc(SCC(=O)Nc2cc(C)ccc2OC)c2c(C)c(C)sc2n1
{#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#}
CCc1nc(SCC(=O)Nc2cc(C)ccc2OC)c2c(C)c(C)sc2n1
CCc1nc(SCC(=O)Nc2cc(C)ccc2OC)c2c(C)c(C)sc2n1
2-(2-ethyl-5,6-dimethylthieno[2,3-d]pyrimidin-4-yl)sulfanyl-N-(2-methoxy-5-methylphenyl)acetamide