Task: Answer the multiple choice question.
Query: Which drug exhibits a 7.835\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
[a] NS(=O)(=O)c1ccc(CCNC(=O)c2ccncc2)cc1
[b] C=CCNc1nc(C)c(CNc2c(C)cc(C)cc2C)nc1C#N
[c] O=C1CC2(CCCC2)C(=O)N1c1ccc(S(=O)(=O)NCC2CC2)cc1Cl
[d] Cc1ccc(CN2C(=O)CN=C(c3ccccc3)c3ccccc32)cc1
[e] CC1CCCC(C)N1C(=O)COC(=O)Cn1cnc2c1c(=O)n(C)c(=O)n2C
Answer: b. C=CCNc1nc(C)c(CNc2c(C)cc(C)cc2C)nc1C#N
{#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#}
C=CCNc1nc(C)c(CNc2c(C)cc(C)cc2C)nc1C#N
C=CCNc1nc(C)c(CNc2c(C)cc(C)cc2C)nc1C#N
5-methyl-3-(prop-2-enylamino)-6-[(2,4,6-trimethylanilino)methyl]pyrazine-2-carbonitrile