Task: Answer the MCQ question.
Question: Which drug exhibits a -4.321\% 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] O=C(O)c1ccc(N/N=C/c2cc3cc4c(cc3nc2Cl)OCCO4)cc1
[b] CCOC(=O)c1[nH]nc(-c2c(O)cc(C)cc2O)c1-c1csc(C)n1
[c] COc1cc(NC(=S)NCc2cccnc2)c(OC)cc1Cl
Answer: c. COc1cc(NC(=S)NCc2cccnc2)c(OC)cc1Cl
{#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#}
COc1cc(NC(=S)NCc2cccnc2)c(OC)cc1Cl
COc1cc(NC(=S)NCc2cccnc2)c(OC)cc1Cl
1-(4-chloro-2,5-dimethoxyphenyl)-3-(pyridin-3-ylmethyl)thiourea