Convenient synthesis of melatonin analogues: 2- and 3-substituted -N-acetylindolylalkylamines
作者:Valentine G. Nenajdenko、Eugene P. Zakurdaev、Eugene V. Prusov、Elizabeth S. Balenkova
DOI:10.1016/j.tet.2004.10.006
日期:2004.12
A new method for the synthesis of 2- and 3-substituted indolylalkylamides, derivatives of melatonin, from arylhydrazines and amidoketones by the Fischer reaction was elaborated. The amidoketones can be easily prepared from cyclic imines by reaction with acylpyridinium chloride. This method is a one-step synchronous creation of the selected alkylamide fragment and the indole core. Variation of the arylhydrazines
A novel convenient approach to the synthesis of 2-substituted analogs of ornithine and homolysine
作者:V. G. Nenajdenko、E. P. Zakurdaev、E. V. Prusov、E. S. Balenkova
DOI:10.1007/s11172-005-0204-9
日期:2004.12
A novel efficient method for the synthesis of earlier unknown 2-substituted analogs of ornithine and homolysine from substituted 5-aminopentyl- and 3-midopropylhydantoins (prepared from cyclic imines and amino and amido ketones) was developed. Hydrolysis of hydantoins with a solution of Ba(OH)2 gave the target amino acids in high yields.