Task: Answer the multiple-choice question.
Query: Which compound exhibits a -6.507\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
(a) Cc1ccccc1C(=O)c1cccn1CC(=O)O
(b) CCOc1ccc2nc(N(CCCN(C)C)C(=O)c3ccc4c(c3)CCCC4)sc2c1.Cl
(c) COc1ncnc2sc3c(c12)CCCC3
(d) CN1CCN(C2=C(Cl)C(=O)N(Cc3ccccc3)C2=O)CC1
Answer: c. COc1ncnc2sc3c(c12)CCCC3
{#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#}
4-methoxy-5,6,7,8-tetrahydro-[1]benzothiolo[2,3-d]pyrimidine