Task: Answer the MCQ question.
Query: Which drug exhibits a -1.349\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a: CCCOC(=O)CCCC[C@H]1SC[C@@H](NC(=O)OC)[C@H]1NC(=O)OC
b: CC(C)c1nnc(SCc2ccc(CSc3nnc(C(C)C)n3N)cc2)n1N
c: Cc1ccc(C2CC(=O)NC3=C2C(=O)CCC3)cc1Br
Answer: a. CCCOC(=O)CCCC[C@H]1SC[C@@H](NC(=O)OC)[C@H]1NC(=O)OC
{#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#}
CCCOC(=O)CCCC[C@H]1SC[C@@H](NC(=O)OC)[C@H]1NC(=O)OC
CCCOC(=O)CCCC[C@H]1SC[C@@H](NC(=O)OC)[C@H]1NC(=O)OC
propyl5-[(2R,3R,4S)-3,4-bis(methoxycarbonylamino)thiolan-2-yl]pentanoate