Task: Answer the multiple choice question.
Query: Which drug exhibits a 15.499\% 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. O=C(c1ccc(C#CC2(O)CCCCC2)cc1)N1CCN(C(c2ccccc2)c2ccccc2)CC1
b. S=C1NCCOCCOCCOCCNC(=S)NCCOCCOCCOCCN1
c. CCCOc1cccc(C(=O)NC(=S)Nc2cccc(C(F)(F)F)c2)c1
d. COc1ccc(-c2ccc(-c3noc(-c4ccccc4)n3)c(OC)n2)cc1
Answer: b. S=C1NCCOCCOCCOCCNC(=S)NCCOCCOCCOCCN1
{#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=C1NCCOCCOCCOCCNC(=S)NCCOCCOCCOCCN1
S=C1NCCOCCOCCOCCNC(=S)NCCOCCOCCOCCN1
1,9,12,15,23,26-hexaoxa-4,6,18,20-tetrazacyclooctacosane-5,19-dithione