Carboxyl-mediated pictet-spengler reaction. Direct synthesis of 1,2,3,4-tetrahydro β-carbolines from tryptamine-2-carboxylic acids.
作者:Krishnaswamy Narayanan、James M Cook
DOI:10.1016/s0040-4039(00)97406-9
日期:1990.1
The Pictet-Spengler condensation of various tryptamine-2-carboxylicacids 1 with carbonyl compounds in benzene/dioxane/trifiuoroacetic acid (Table) with simultaneous loss of carbon dioxide, afforded directly the corresponding 1,2,3,4-tetrahydro β-carbolines 4 in good to excellent yields.
Beta-carboline compounds and analogues thereof as mitogen-activated protein kinase-activated protein kinase-2 inhibitors
申请人:Anderson R. David
公开号:US20050137220A1
公开(公告)日:2005-06-23
A method is described for inhibiting mitogen activated protein kinase-activated protein kinase-2 in a subject in need of such inhibition, where the method involves administering to the subject a beta-carboline MK-2 inhibiting compound, or a pharmaceutically acceptable salt thereof.
Carboxyl-mediated Pictet-Spengler reaction. Direct synthesis of 1,2,3,4-tetrahydro-.beta.-carbolines from tryptamine-2-carboxylic acids
作者:Krishnaswamy Narayanan、Liesl Schindler、James M. Cook
DOI:10.1021/jo00001a066
日期:1991.1
The Pictet-Spengler condensation of various tryptamine-2-carboxylic acids 9a-f with carbonyl compounds in benzene/dioxane/trifluoroacetic acid (Table I) with simultaneous loss of carbon dioxide afforded directly the corresponding 1,2,3,4-tetrahydro-beta-carbolines 14a-j in good to excellent yields. This reaction greatly enhances the use of the Abramovitch-Shapiro method for the synthesis of highly oxygenated ring A substituted 1,2,3,4-tetrahydro-beta-carbolines (THBC). The lactams 14f,g and 14h are key intermediates for the synthesis of ring A substituted 1-methoxycanthin-6-one analogues.
Narayanan, Krishnaswamy; Cook, James M., Heterocycles, 1991, vol. 32, # 10, p. 2005 - 2014
作者:Narayanan, Krishnaswamy、Cook, James M.
DOI:——
日期:——
NARAYANAN, KRISHNASWAMY;COOK, JAMES M., TETRAHEDRON LETT., 31,(1990) N4, C. 3397-3400