Task: Answer the multiple-choice question.
Question: Which drug exhibits a -2.388\% human ether-à-go-go related gene (hERG) inhibition at 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(c1cccn2c(=O)c3cc4ccccc4cc3nc12)N1CCN(c2ccccc2)CC1
b. CCOc1ccc(NC(=O)N2CCC(c3ccc(C)cc3)C2)cc1
c. COc1cccc(CC(=O)Nc2nc3c(s2)C(=O)CC(C)(C)C3)c1
d. O=C(CCNS(=O)(=O)c1ccc2c(c1)CCC(=O)N2)Nc1ccc2c(c1)OCCO2
Answer: a. O=C(c1cccn2c(=O)c3cc4ccccc4cc3nc12)N1CCN(c2ccccc2)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(c1cccn2c(=O)c3cc4ccccc4cc3nc12)N1CCN(c2ccccc2)CC1
O=C(c1cccn2c(=O)c3cc4ccccc4cc3nc12)N1CCN(c2ccccc2)CC1
4-(4-phenylpiperazine-1-carbonyl)-12H-benzo[g]pyrido[2,1-b]quinazolin-12-one