Synthesis of acylguanidine analogs: inhibitors of ADP-induced platelet aggregation
作者:Edward W. Thomas、Edward E. Nishizawa、David C. Zimmermann、Davey J. Williams
DOI:10.1021/jm00121a041
日期:1989.1
Routine screening of compounds for inhibition of ADP-inducedplateletaggregation in vitro revealed that 1,1'-hexamethylenebis[3-cyclohexyl-3-[(cyclohexylimino) (4-morpholinyl) methyl]urea] (1) was active and represented the first example of a bis(acylguanidine) with possible antithrombotic activity. In order to develop a structure-activity relationship for this class of compounds, we synthesized a
three-component reaction of cyanamides, amines, and diaryliodonium triflates was developed for the synthesis of guanidines. The mild reaction accommodates both aromatic and aliphatic amines and provides the products in good yields with good functional group tolerance. Moreover, it was demonstrated that C–H activation of the arenes could be realized for the direct preparation of guanidines.