Task: Answer the multiple-choice question.
Question: Which drug has a 3.971\% 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 other words.
Options:
a. CCOC(=O)c1nn(-c2ccc([N+](=O)[O-])cc2)cc1O
b. CCCN(CC(=O)Nc1ccc(F)c(F)c1F)C(=O)Cn1c(=O)cnc2ccccc21
c. CCOC(=O)c1c(N)sc(C(=O)N2CCCCC2)c1C
d. O=C(N1CCOCC1)N1CCN(Cc2ccccc2)CC1
Answer: d. O=C(N1CCOCC1)N1CCN(Cc2ccccc2)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(N1CCOCC1)N1CCN(Cc2ccccc2)CC1
O=C(N1CCOCC1)N1CCN(Cc2ccccc2)CC1
(4-benzylpiperazin-1-yl)-morpholin-4-ylmethanone