Problem statement: Answer the MCQ question.
Query: Which compound has a 0.663\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) COc1ccc(N2CCN(C(=O)COC(=O)c3cnccn3)CC2)cc1
(b) O=C1COc2ccc(C(=O)CCl)cc2N1
Answer: b. O=C1COc2ccc(C(=O)CCl)cc2N1
{#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=C1COc2ccc(C(=O)CCl)cc2N1
O=C1COc2ccc(C(=O)CCl)cc2N1
6-(2-chloroacetyl)-4H-1,4-benzoxazin-3-one