Task: Please answer the multiple choice question.
Question: Which molecules are a substrate for CYP2D6?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. Cc1ccccc1[C@H](OCCN(C)C)c1ccccc1
b. CC(C)(O)c1ccccc1CC[C@@H](SCC1(CC(=O)O)CC1)c1cccc(/C=C\c2ccc3ccc(Cl)cc3n2)c1
Answer: a
Task: Please answer the multiple choice question.
Question: Which molecules are {CYP2D6_Substrate#not &NULL}a {CYP2D6_Substrate__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%CYP2D6_Substrate%}
Answer: {%multiple_choice_result}
N,N-dimethyl-2-[(R)-(2-methylphenyl)-phenylmethoxy]ethanamine