Problem statement: Answer the MCQ question.
Query: Which compound has a 15.320\% 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 CCc1ccccc1N1CCN(S(=O)(=O)c2cc(OC)ccc2OC)CC1
b COc1ccc(Oc2nc(SC)nc3ccsc23)cc1
Answer: b. COc1ccc(Oc2nc(SC)nc3ccsc23)cc1
{#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(Oc2nc(SC)nc3ccsc23)cc1
COc1ccc(Oc2nc(SC)nc3ccsc23)cc1
[C][O][C][=C][C][=C][Branch2][Ring1][Ring1][O][C][=N][C][Branch1][Ring1][S][C][=N][C][C][=C][S][C][Ring1][O][=Ring1][Branch1][C][=C][Ring2][Ring1][C]
4-(4-methoxyphenoxy)-2-methylsulfanylthieno[3,2-d]pyrimidine