Problem statement: Answer the multiple-choice question.
Question: Which drug exhibits a 11.845\% 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. Nc1ncnc2c1ncn2C1OC(CO)C(O)C1O
b. COc1ccc(Cl)cc1NC(=O)CN(C)Cc1cccs1
Answer: a. Nc1ncnc2c1ncn2C1OC(CO)C(O)C1O
{#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#}
Nc1ncnc2c1ncn2C1OC(CO)C(O)C1O
Nc1ncnc2c1ncn2C1OC(CO)C(O)C1O
2-(6-aminopurin-9-yl)-5-(hydroxymethyl)oxolane-3,4-diol