[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][O][C][=Branch1][C][=O][C][Branch1][=N][C][C][C][=C][C][Ring1][=Branch1][N][Branch1][C][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is an amino acid ester that is the ethyl ester of cyclohex-3-ene-1-carboxylic acid in which the cyclohexane ring is substituted at positions 1 and 2 by phenyl and dimethylamino groups, respectively. It has four possible diastereoisomers; the opioid analgesic drug tilidine is a racemate comprising the two trans diastereoisomers. It is an amino acid ester, a tertiary amino compound and an ethyl ester. It is functionally related to an ethyl 2-(methylamino)-1-phenylcyclohex-3-ene-1-carboxylate."}]