Task: Answer the multiple choice question.
Question: Which drug exhibits a -0.693\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: CCCC(CCC)n1[nH]c(=O)c2c(C)cc(C)nc21
b: O=C1CC(c2ccco2)Cc2nc(N3CCN(Cc4ccc5c(c4)OCO5)CC3)ncc21
Answer: b. O=C1CC(c2ccco2)Cc2nc(N3CCN(Cc4ccc5c(c4)OCO5)CC3)ncc21
{#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=C1CC(c2ccco2)Cc2nc(N3CCN(Cc4ccc5c(c4)OCO5)CC3)ncc21
O=C1CC(c2ccco2)Cc2nc(N3CCN(Cc4ccc5c(c4)OCO5)CC3)ncc21
2-[4-(1,3-benzodioxol-5-ylmethyl)piperazin-1-yl]-7-(furan-2-yl)-7,8-dihydro-6H-quinazolin-5-one