YU, QIAN-SHENG;ATACK, JOHN R.;RAPOPORT, STANLEY I.;BROSSI, ARNOLD, J. MED. CHEM., 31,(1988) N 12, C. 2297-2300
作者:YU, QIAN-SHENG、ATACK, JOHN R.、RAPOPORT, STANLEY I.、BROSSI, ARNOLD
DOI:——
日期:——
Synthesis and anticholinesterase activity of (-)-N1-norphysostigmine, (-)-eseramine, and other N1-substituted analogs of (-)-physostigmine
作者:Qian Sheng Yu、John R. Atack、Stanley I. Rapoport、Arnold Brossi
DOI:10.1021/jm00120a008
日期:1988.12
(-)-N1-Benzylnorphysostigmine (4), prepared from synthetic (-)-O-methyl-N1-noreseroline (1) by N-benzylation, ether cleavage, and reaction of (-)-N1-benzylnoreseroline (3) with methyl isocyanate, was the intermediate used to prepare the title compounds. Catalytic debenzylation of 4 afforded (-)-N1-norphysostigmine (5), and (-)-eseramine (6) was obtained by reaction of 5 with methyl isocyanate. Reductive