Task: Please answer the multiple choice question.
Question: Which molecule has the longest half life time in humans after IV administration?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
a O=C(O)C1N=C(c2ccccc2)c2cc(Cl)ccc2NC1=O
b CCCC(C)(COC(N)=O)COC(N)=O
c O=C(c1ccc(F)cc1)C1CCN(CCn2c(=O)[nH]c3ccccc3c2=O)CC1
d COc1cc2nc(N3CCN(C(=O)c4ccco4)CC3)nc(N)c2cc1OC
e COC(=O)C(c1ccccc1)C1CCCCN1
Answer: b
Task: Please answer the multiple choice question.
Question: Which molecule has the longest {half_life_duration__names__noun}?
Constraint: Even if you are {#uncertain|not sure!}, you must pick either {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%half_life_duration%}
Answer: {%multiple_choice_result}
[2-(carbamoyloxymethyl)-2-methylpentyl] carbamate