A silicon-mediated synthesis of novel 5-substituted 2,4-dimethoxypyrimidines and 5-substituted uracils
作者:Nitya G. Kundu、Biswajit Das、Anjali Majumdar、Lakshmi N. Choudhuri
DOI:10.1016/s0040-4039(00)96775-3
日期:1987.1
A highly efficient and general method for the synthesis of 5-(2-acylethynyl)-2,4-dimethoxypyrimidines starting from 2,4-dimethoxy-5-/2-(trimethylsilyl)ethynyl/pyrimidine is described. The 5-(2-acylethynyl)-2,4-dimechoxypyrimidines have been converted to 5-(2-acyl-1-iodovinyl) uracils and 5-(2-acylethynyl) uracils.
Synthesis and biological activities of novel 5-(2-acylethynyl)uracils
作者:Nitya G. Kundu、Biswajit Das、C. Paul Spears、Anjali Majumdar、San Ihn Kang
DOI:10.1021/jm00169a026
日期:1990.7
corresponding 5-(2-acylethynyl)uracils (11-14). The 5-(2-acylethynyl)uracils were found to be active against Ehrlich ascites carcinoma (EAC) cells in vivo, the most active compounds being 5-(2-benzoylethynyl)uracil (11) and 5-(2-p-toluoylethynyl)uracil (12). The T/C values of 281 and 300 were obtained for compounds 11 and 12, respectively, in the case of mice bearing EAC cells. The 5-(2-acylethynyl)uracils
Synthesis of 5-(acylethynyl)uracils and their corresponding 2′-deoxyribonucleosides through palladium-catalysed reactions
作者:Nitya G. Kundu、Swapan K. Dasgupta
DOI:10.1039/p19930002657
日期:——
Good yields of the title uracils were obtained by using the palladium-catalysed reaction between 5-iodo-2,4-dimethoxypyrimidine and substituted propargylic alcohols rather than the corresponding ketones. The same strategy works for coupling with the 5-iodo-2'-deoxyuridines.
KUNDU, NITYA G.;DAS, BISWAJIT;SPEARS, C. PAUL;MAJUMDAR, ANJALI;KANG, SANG+, J. MED. CHEM., 33,(1990) N, C. 1975-1979
作者:KUNDU, NITYA G.、DAS, BISWAJIT、SPEARS, C. PAUL、MAJUMDAR, ANJALI、KANG, SANG+