Task: Answer the multiple-choice question.
Query: Which drug has a -63.500\% 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) Cc1ccc(C(=O)NC(=S)NCC2CCCO2)cc1Br
(b) N=c1c2c(-c3ccccc3)c(-c3ccccc3)oc2ncn1CCN1CCOCC1
(c) Cc1cc(=O)[nH]c(SCCc2ccccc2)n1
Answer: b. N=c1c2c(-c3ccccc3)c(-c3ccccc3)oc2ncn1CCN1CCOCC1
{#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#}
N=c1c2c(-c3ccccc3)c(-c3ccccc3)oc2ncn1CCN1CCOCC1
N=c1c2c(-c3ccccc3)c(-c3ccccc3)oc2ncn1CCN1CCOCC1
3-(2-morpholin-4-ylethyl)-5,6-diphenylfuro[2,3-d]pyrimidin-4-imine