Task: Answer the multiple-choice question.
Question: Which compound exhibits a -0.221\% human ether-à-go-go related gene (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 Cc1ccc(C)c(SCC(=O)OCC(=O)NCc2ccccc2)c1
b COC(=O)CSc1nc(N)c2c3c(sc2n1)CCCC3
c CN(C1CCCCC1)S(=O)(=O)c1ccc(NC(=O)c2ccc(Br)o2)cc1
d O=[N+]([O-])c1cc(C(F)(F)F)ccc1N/N=C/c1cc2ccccc2nc1Cl
Answer: b. COC(=O)CSc1nc(N)c2c3c(sc2n1)CCCC3
{#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#}
COC(=O)CSc1nc(N)c2c3c(sc2n1)CCCC3
COC(=O)CSc1nc(N)c2c3c(sc2n1)CCCC3
[C][O][C][=Branch1][C][=O][C][S][C][=N][C][Branch1][C][N][=C][C][=C][Branch1][Branch2][S][C][Ring1][Branch1][=N][Ring1][#Branch2][C][C][C][C][Ring1][=Branch2]
methyl2-[(4-amino-5,6,7,8-tetrahydro-[1]benzothiolo[2,3-d]pyrimidin-2-yl)sulfanyl]acetate