Task: Answer the multiple choice question.
Query: Which drug exhibits a 1.816\% 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 other words.
Options:
a. COc1ccc(CCNC(=O)CSc2nc(C)nc3sccc23)cc1OC
b. Cn1c(=O)cc(SCC(=O)N2CCC3(CC2)OCCO3)c2ccc(Cl)cc21
c. COc1cccc(CCc2nnc(CCC(=O)N3CCCC3c3nccs3)o2)c1
d. CCOc1ccccc1C(=O)Nc1nnc(C(C)C)s1
Answer: a. COc1ccc(CCNC(=O)CSc2nc(C)nc3sccc23)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)CSc2nc(C)nc3sccc23)cc1OC
COc1ccc(CCNC(=O)CSc2nc(C)nc3sccc23)cc1OC
N-[2-(3,4-dimethoxyphenyl)ethyl]-2-(2-methylthieno[2,3-d]pyrimidin-4-yl)sulfanylacetamide