Task: Answer the MCQ question.
Query: Which drug exhibits a 19.877\% 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.) COc1ccc(CC(=O)N2CCN(c3ccc(C4=NNC(=O)CC4C)cc3)CC2)cc1
b.) O=C1CCN(Cc2ccccc2)N1
c.) O=C(CN1C2=NCCCN2c2ccccc21)c1cccs1
d.) Cc1nc2ccc(S(=O)(=O)Nc3ccccc3C)cc2s1
Answer: b. O=C1CCN(Cc2ccccc2)N1
{#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=C1CCN(Cc2ccccc2)N1
O=C1CCN(Cc2ccccc2)N1
1-benzylpyrazolidin-3-one