Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a 3.841\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a) CCOC(=O)C1=C(CC)Nc2ccccc2N=C1NC(=O)CCNC(C)=O
b) CCc1ccc2[nH]c(=O)c(C(c3nnnn3CCOC)N3CCN(c4ccccc4F)CC3)cc2c1
Answer: b. CCc1ccc2[nH]c(=O)c(C(c3nnnn3CCOC)N3CCN(c4ccccc4F)CC3)cc2c1
{#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#}
CCc1ccc2[nH]c(=O)c(C(c3nnnn3CCOC)N3CCN(c4ccccc4F)CC3)cc2c1
CCc1ccc2[nH]c(=O)c(C(c3nnnn3CCOC)N3CCN(c4ccccc4F)CC3)cc2c1
6-ethyl-3-[[4-(2-fluorophenyl)piperazin-1-yl]-[1-(2-methoxyethyl)tetrazol-5-yl]methyl]-1H-quinolin-2-one