Task: Answer the multiple-choice question.
Query: Which compound has a -4.503\% 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] CCc1ccc2c(CN3CCOCC3)cc(=O)oc2c1
[b] Cc1nc2ccc(C(=O)N3CCN(c4ccccn4)CC3)cc2s1
[c] CCc1ccc(N2C(=O)CN(CC(=O)OC)C2=S)cc1
[d] O=C(O)CN1C(=O)NC2NC(=O)NC21
Answer: a. CCc1ccc2c(CN3CCOCC3)cc(=O)oc2c1
{#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#}
CCc1ccc2c(CN3CCOCC3)cc(=O)oc2c1
CCc1ccc2c(CN3CCOCC3)cc(=O)oc2c1
7-ethyl-4-(morpholin-4-ylmethyl)chromen-2-one