Problem statement: Answer the multiple-choice question.
Query: Which drug has a -20.453\% 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 other words.
Options:
a. COc1ccccc1NC(=O)Cc1noc(CSc2n[nH]c(N)n2)n1
b. O=C(C1=C[C@H](c2ccc3c(c2)OCO3)C[C@H](OCCCCO)O1)N1CCN(Cc2ccccc2)CC1
c. CN(Cc1ccccn1)C(=O)C1CCC(=O)N(CCc2ccc(Cl)cc2)C1
d. CC(=O)C1(c2ccccc2)CCNCC1
Answer: b. O=C(C1=C[C@H](c2ccc3c(c2)OCO3)C[C@H](OCCCCO)O1)N1CCN(Cc2ccccc2)CC1
{#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(C1=C[C@H](c2ccc3c(c2)OCO3)C[C@H](OCCCCO)O1)N1CCN(Cc2ccccc2)CC1
O=C(C1=C[C@H](c2ccc3c(c2)OCO3)C[C@H](OCCCCO)O1)N1CCN(Cc2ccccc2)CC1
[(2R,4R)-4-(1,3-benzodioxol-5-yl)-2-(4-hydroxybutoxy)-3,4-dihydro-2H-pyran-6-yl]-(4-benzylpiperazin-1-yl)methanone