Alves, M. Jose; Booth, Brian L.; Carvalho, Alice, Journal of the Chemical Society. Perkin transactions II, 1994, # 9, p. 1949 - 1956
作者:Alves, M. Jose、Booth, Brian L.、Carvalho, Alice、Eastwood, Paul R.、Nezhat, Lida、et al.
DOI:——
日期:——
PROCESSES FOR THE PREPARATION OF 4(5)-AMINO-5(4)-CARBOXAMIDOIMIDAZOLES AND INTERMEDIATES THEREOF
申请人:NIPPON SODA CO., LTD.
公开号:EP1215206B1
公开(公告)日:2006-08-02
Synthesis of 4- and 5-disubstituted 1-benzylimidazoles, important precursors of purine analogs
作者:M. José Alves、M. Fernanda J. R. P. Proença、Brian L. Booth
DOI:10.1002/jhet.5570310215
日期:1994.3
(Z)-N-(2-amino-1,2-dicyanovinyl)-N'-benzylformamidine 6 has been prepared both from the reaction of benzylisonitrile with the hydrochloride salt of diaminomaleonitrile and from reaction of ethyl (Z)-N-(2-amino-1,2-dicyanovinyl)formimidate with benzylamine. Based-catalyzed cyclization of amidine 6 led to imidazoles 7 and 8 depending on the reaction conditions. Compound 7 reacts with acetone and butane-2