Task: Answer the MCQ question.
Question: Which drug exhibits a 2.655\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: CC(=O)c1ccc(S(=O)(=O)NCCC(=O)OCC(=O)N2CCCC2=O)cc1
b: COc1ccc(CCNC(=O)c2noc3c2CCCC3)cc1OC
Answer: b. COc1ccc(CCNC(=O)c2noc3c2CCCC3)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(CCNC(=O)c2noc3c2CCCC3)cc1OC
COc1ccc(CCNC(=O)c2noc3c2CCCC3)cc1OC
N-[2-(3,4-dimethoxyphenyl)ethyl]-4,5,6,7-tetrahydro-1,2-benzoxazole-3-carboxamide