Task: Answer the multiple-choice question.
Question: Which drug has a 3.752\% 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(S(=O)(=O)NC(N)=NCCc2ccc(OC)c(OC)c2)cc1C
b) COc1ccc(C(=O)NCCc2nnc(SCc3nc4ccccc4c(=O)[nH]3)n2C)cc1
c) Cc1cccc(C(C)C)c1NC(=O)c1cc2ccccc2o1
d) Cc1c(C(=O)O)c(C(=O)O)nc2ccc(N3CCOCC3)cc12
Answer: a. COc1ccc(S(=O)(=O)NC(N)=NCCc2ccc(OC)c(OC)c2)cc1C
{#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(S(=O)(=O)NC(N)=NCCc2ccc(OC)c(OC)c2)cc1C
COc1ccc(S(=O)(=O)NC(N)=NCCc2ccc(OC)c(OC)c2)cc1C
2-[2-(3,4-dimethoxyphenyl)ethyl]-1-(4-methoxy-3-methylphenyl)sulfonylguanidine