You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the SMILES representation of the molecule (2S)-2-[[(1R)-1-cyclopentylethyl]amino]-1-morpholin-4-ylbutan-1-one .
user
CCC(NC(C)C1CCCC1)C(=O)N1CCOCC1
assistant