Task: Answer the multiple choice question.
Question: Which drug has a 13.156\% 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: O=C(c1cc(COc2ccc(F)cc2Cl)on1)N1CCN(c2cnccn2)CC1
b: COc1ccc(CCN(C)c2ccc(C(N)=O)cc2[N+](=O)[O-])cc1OC
c: S=c1nc[nH]c2c1ncn2C1CCCO1
d: COc1cc(C2NC(=O)N(C)C(C)=C2C(=O)OCc2ccccc2)cc(Br)c1O
e: CC1CN(CC(=O)Nc2ccc([N+](=O)[O-])cc2Br)CC(C)O1
Answer: c. S=c1nc[nH]c2c1ncn2C1CCCO1
{#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#}
S=c1nc[nH]c2c1ncn2C1CCCO1
S=c1nc[nH]c2c1ncn2C1CCCO1
9-(oxolan-2-yl)-3H-purine-6-thione