Task: Answer the MCQ question.
Query: Which drug exhibits a -13.562\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a.) CSc1nc(N2CCN(C)CC2)c2ccccc2n1
b.) COc1ccccc1NC(=O)CC(=O)CSc1nnc(-c2ccc(C)cc2)n1-c1ccccc1
Answer: a. CSc1nc(N2CCN(C)CC2)c2ccccc2n1
{#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#}
CSc1nc(N2CCN(C)CC2)c2ccccc2n1
CSc1nc(N2CCN(C)CC2)c2ccccc2n1
4-(4-methylpiperazin-1-yl)-2-methylsulfanylquinazoline