Task: Answer the multiple-choice question.
Question: Which drug exhibits a 6.616\% 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(CSc1ncnc2nc[nH]c12)N1CCOCC1
b. COC(=O)C1CCN(c2ccc([N+](=O)[O-])cc2[N+](=O)[O-])CC1
c. CCCc1nc(N2CCOCC2)c(C#N)c2c1CCCC2
d. COc1cc(OC)cc(-c2oc3cccnc3c2C#CCCO)c1
Answer: a. O=C(CSc1ncnc2nc[nH]c12)N1CCOCC1
{#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=C(CSc1ncnc2nc[nH]c12)N1CCOCC1
O=C(CSc1ncnc2nc[nH]c12)N1CCOCC1
1-morpholin-4-yl-2-(7H-purin-6-ylsulfanyl)ethanone