Task: Answer the multiple-choice question.
Query: Which drug exhibits a 1.991\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a. COc1ccc(CCNC2CC(=O)N(C)C2=O)cc1OC
b. CCCCOCCCNC(=O)Cc1cccs1
c. NC(=O)NC(c1ccccc1)c1ccccc1
d. CN(C)c1ccc(-n2cccc2)cc1
Answer: a. COc1ccc(CCNC2CC(=O)N(C)C2=O)cc1OC
{#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#}
COc1ccc(CCNC2CC(=O)N(C)C2=O)cc1OC
COc1ccc(CCNC2CC(=O)N(C)C2=O)cc1OC
1-methyl-3-[2-(4,5-dimethoxyphenyl)ethylamino]pyrrolidine-2,5-dione