An efficient and mild one-pot approach for copper-catalyzed aerobic oxidative coupling of α-carbonyl aldehydes with terminal alkynes toward ynediones has been developed. Moreover, a variety of ynediones were constructed under the optimized reaction conditions, and a plausible mechanism was presented based on a series of control experiments.
2-Hydroxy-2-phenylethylamine derivatives as beta-3-adrenoceptor agonists
申请人:ZENECA LIMITED
公开号:EP0516350A2
公开(公告)日:1992-12-02
Compounds of the formula (I):
and bioprecursors and pharmaceutically acceptable salts thereof are described as β3-adrenoceptor agonists having anti-obesity, hypoglycaemic and related therapeutic utilities. Processes for their preparation are described as are compositions containing them.