Palladium-catalyzed heteroallylation of unactivated alkenes – synthesis of citalopram
作者:Joanne F. M. Hewitt、Lewis Williams、Pooja Aggarwal、Craig D. Smith、David J. France
DOI:10.1039/c3sc51222c
日期:——
A palladium-catalyzed difunctionalization of unactivated alkenes with tethered nucleophiles is reported. The versatile reaction occurs with simple allylic halides and can be carried out under air. The methodology provides rapid access to a wide array of desirable heterocyclic targets, as illustrated by a concise synthesis of the widely prescribed antidepressantcitalopram.
Pd-Catalyzed regioselective hydroesterification of 2-allylphenols to seven-membered lactones without external CO gas
作者:Wenju Chang、Jingfu Li、Wenlong Ren、Yian Shi
DOI:10.1039/c5ob02663f
日期:——
Effective Pd-catalyzedregioselectivehydroesterification of 2-allylphenols with phenyl formate is described. A variety of seven-membered lactones can be obtained in good yields under mild conditions without the use of toxic CO gas.
A compound represented by the formula (1):
wherein each symbol is as defined in the specification, and a salt thereof and a prodrug thereof unexpectedly have superior GPR40 receptor agonist activity, superior in the properties as a pharmaceutical product such as stability and the like, and can be a safe and useful pharmaceutical agent as a drug for the prophylaxis or treatment of GPR40 receptor related pathology or diseases such as diabetes and the like.
A compound represented by the formula (1):
wherein each symbol is as defined in the specification, and a salt thereof and a prodrug thereof unexpectedly have superior GPR40 receptor agonist activity, superior in the properties as a pharmaceutical product such as stability and the like, and can be a safe and useful pharmaceutical agent as a drug for the prophylaxis or treatment of GPR40 receptor related pathology or diseases such as diabetes and the like.