Task: Answer the MCQ question.
Question: Which drug exhibits a -6.176\% 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, b, or c without using any additional words.
Options:
(a) COc1ccc(NC(=O)CN(C)C(=O)c2oc3ccccc3c2C)cc1
(b) COc1cc2c(cc1OC)C1(CCCCC1)CN(C)C2.Cl
(c) COc1ccccc1OCCNS(=O)(=O)c1ccc2oc3ccccc3c2c1
Answer: b. COc1cc2c(cc1OC)C1(CCCCC1)CN(C)C2.Cl
{#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#}
COc1cc2c(cc1OC)C1(CCCCC1)CN(C)C2.Cl
COc1cc2c(cc1OC)C1(CCCCC1)CN(C)C2.Cl
6,7-dimethoxy-2-methylspiro[1,3-dihydroisoquinoline-4,1'-cyclohexane];hydrochloride