PROCESS FOR THE PREPARATION OF A BENZENE DERIVATIVE
摘要:
The present invention relates to a process for the preparation of N-[(Z)-3-(3-chloro-4- cyclohexylphenyl)prop-2-enyl]-N-ethylcyclohexanamine or a salt thereof of the following formula (II).
The preparation of immunosuppressant SR-31747 is described. Attempts to install the Z-allyl amine included Lindlar partial hydrogenation and vinyl stannane methodologies. Ultimately, the Wittig olefination of aldehyde 12 with the ylide derived from beta-aminoethyl phosphonium salt 13 proved successful.