You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule has Faint burnt odor. Dt50 (25 °c) 6 days (ph 5), 114 days (ph 7); after 28 days, 87% unchanged (ph 9). Please represent the molecule in SMILES.
user
CCON=C(CC)C1=C(O)CC(c2c(C)cc(C)cc2C)CC1=O
assistant