Problem statement: Answer the MCQ question.
Query: Which drug exhibits a 1.371\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) O=C1CCC(=O)N1OCCOc1ccccc1
(b) CCC(=O)OC1(C)C(=O)C=C2C=C(CCCCNC(=O)OC(C)(C)C)OC=C2C1=O
Answer: a. O=C1CCC(=O)N1OCCOc1ccccc1
{#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=C1CCC(=O)N1OCCOc1ccccc1
O=C1CCC(=O)N1OCCOc1ccccc1
1-(2-phenoxyethoxy)pyrrolidine-2,5-dione