Task: Answer the multiple choice question.
Query: Which compound exhibits a 1.774\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) COc1cc2c(cc1OC)C1Cc3[nH]ncc3C(=O)N1CC2
(b) COc1ccc(NC(=O)Cn2c(=O)n(CC3CCCO3)c(=O)c3cc(OC)c(OC)cc32)c(OC)c1
Answer: a. COc1cc2c(cc1OC)C1Cc3[nH]ncc3C(=O)N1CC2
{#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)C1Cc3[nH]ncc3C(=O)N1CC2
COc1cc2c(cc1OC)C1Cc3[nH]ncc3C(=O)N1CC2
4,5-dimethoxy-10,14,15-triazatetracyclo[8.7.0.02,7.012,16]heptadeca-2,4,6,12(16),13-pentaen-11-one