Microwave-Promoted Pd-Catalyzed Cyanation of Aryl Triflates: A Fast and Versatile Access to 3-Cyano-3-desoxy-10-ketomorphinans
摘要:
[GRAPHICS]A methodology for the microwave-promoted conversion of triflates to the corresponding nitriles by using 8% equiv of Pd(Ph3P)(4) as the catalyst and 2.0 equiv of Zn(CN)(2) as the cyanide source has been developed. This method is highly efficient for the preparation of 3-cyano-3-desoxy10-ketomorphinans. The reaction was generally completed in 15 min at 200 degreesC and produced products in greater than 86% yields.
2-Aminothiazole-Derived Opioids. Bioisosteric Replacement of Phenols
作者:Ao Zhang、Wennan Xiong、James E. Hilbert、Emily K. DeVita、Jean M. Bidlack、John L. Neumeyer
DOI:10.1021/jm049978n
日期:2004.4.1
A series of aminothiazole-derived morphinans, benzomorphans, and morphine were synthesized. Although their affinities were somewhat lower than their phenol prototypes, one compound (9a, ATPM) has been identified possessing high affinity and selectivity at the kappa receptor. Functional assays showed that 9a was a full kappa but partial mu agonist; the efficacy at kappa was significantly greater than at mu receptors. This novel compound may be valuable for the development of long-acting analgesics and drug abuse medication.