Task: Answer the MCQ question.
Question: Which drug exhibits a 2.062\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
(a) O=C(O)c1nc(N2CCOCC2)nc(N2CCOCC2)n1
(b) CCCCN1CCNC[C@@H]1c1ccccc1
(c) Cc1ccc(N2CC(C)Cn3c2nc2c3c(=O)[nH]c(=O)n2C)cc1C
(d) CCc1ccc(-n2c(SCC(=O)N3CCC(C(=O)O)CC3)nnc2-c2ccncc2)cc1
(e) N#CC1=C(N)Oc2c(oc(CO)cc2=O)C1c1ccsc1
Answer: a. O=C(O)c1nc(N2CCOCC2)nc(N2CCOCC2)n1
{#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(O)c1nc(N2CCOCC2)nc(N2CCOCC2)n1
O=C(O)c1nc(N2CCOCC2)nc(N2CCOCC2)n1
4,6-dimorpholin-4-yl-1,3,5-triazine-2-carboxylic acid