1654-32-6Relevant academic research and scientific papers
Synthesis and NMR characteristics of N-acetyl-4-nitro, N-acetyl-5-nitro, N-acetyl-6-nitro and N-acetyl-7-nitrotryptophan methyl esters
King, Russell R.,Calhoun, Larry A.
, p. 273 - 276 (2009)
N-acetyl-4-nitrotryptophan methyl ester (2), N-acetyl-5-nitrotryptophan methyl ester (3), N-acetyl-6-nitrotryptophan methyl ester (4) and N-acetyl-7-nitrotryptophan methyl ester (5) were synthesized through a modified malonic ester reaction of the appropriate nitrogramine analogs followed by methylation with BF3-methanol. Assignments of the 1H and 13C NMR chemical shifts were made using a combination of 1H-1H COSY, 1H-13C HETCOR and 1H-13C selective INEPT experiments. Copyright
