Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a 13.384\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
(a) COc1cc2c(cc1OC)-c1cc(NC3CCCC3)nc(=O)n1CC2
(b) O=C(CCn1c(=O)sc2ccccc21)NCCN1CCOCC1
(c) O=C1C2CCCN2C(c2cccnc2)N1c1cccc(Cl)c1
Answer: a. COc1cc2c(cc1OC)-c1cc(NC3CCCC3)nc(=O)n1CC2
{#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#}
2-(cyclopentylamino)-9,10-dimethoxy-6,7-dihydropyrimido[6,1-a]isoquinolin-4-one