Task: Answer the MCQ question.
Question: Which drug exhibits a 6.557\% 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 other words.
Options:
a.) COc1cc2ncnc(NCc3ccccc3C)c2cc1OC
b.) COc1ccc(N2CCN(C(=O)C(=O)c3c(C)[nH]c4ccccc34)CC2)cc1
Answer: a. COc1cc2ncnc(NCc3ccccc3C)c2cc1OC
{#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#}
COc1cc2ncnc(NCc3ccccc3C)c2cc1OC
COc1cc2ncnc(NCc3ccccc3C)c2cc1OC
6,7-dimethoxy-N-[(2-methylphenyl)methyl]quinazolin-4-amine