Activated N-nitrosocarbamates for regioselective synthesis of N-nitrosoureas
作者:Jean Martinez、Joel Oiry、Jean Louis Imbach、Francois Winternitz
DOI:10.1021/jm00344a017
日期:1982.2
A practical and convenient method for synthesizing antitumor compounds, N-alkyl-N-nitrosoureas, regioselectively nitrosated on the nitrogen atom bearing the alkyl group is proposed. N-Alkyl-N-nitrosocarbamates are interesting intermediates in these syntheses and yield, by reaction with amino compounds, the regioselectively nitrosated N-alkyl-N-nitrosoureas. As an interesting example, N,N'-bis[(2-chloroethyl)nitrosocarbamoyl]cystamine, a new attractive oncostatic derivative, has been prepared. The cytotoxic activity of these various compounds were tested on L1210 leukemia.
Novel procedure for the preparation of activated nitrosocarbamates
申请人:Sanofi
公开号:US04883903A1
公开(公告)日:1989-11-28
The subject of the invention is a novel procedure for the preparation of the compounds of formula I: ##STR1## in which n varies in particular from 2 to 5 and R represents Cl, Br or F Z represents in particular hydrogen, characterized in that the halogenoformate of formula II: ##STR2## R and n having the meanings indicated above, Y representing a halogen, is made to react with NH.sub.2 CH.sub.2 CH.sub.2 Cl to form the compound of formula Ia: ##STR3## in which R has the meanings indicated above, and in that the compound Ia is treated directly with nitrosylsulfuric acid.