Task: Answer the MCQ question.
Question: Which drug has a 1.628\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) COc1cc2[nH]c(=S)nc(NCC3CCCO3)c2cc1OC
(b) Cc1cccc2[nH]c3c(N4CCN(C(=O)c5ccco5)CC4)ncnc3c12
Answer: a. COc1cc2[nH]c(=S)nc(NCC3CCCO3)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#}
COc1cc2[nH]c(=S)nc(NCC3CCCO3)c2cc1OC
COc1cc2[nH]c(=S)nc(NCC3CCCO3)c2cc1OC
6,7-dimethoxy-4-(oxolan-2-ylmethylamino)-1H-quinazoline-2-thione