152120-55-3Relevant academic research and scientific papers
Diaminopyrimidines as P2X3 and P2X2/3 modulators
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Page/Page column 17, (2008/12/08)
Compounds of formula (I): wherein R1 and R2 are as defined herein. Also disclosed are methods of making and using the subject compounds.
An efficient method for the preparation of ω,ω'-bis-urethane protected arginine derivatives
Wu,Matsueda,Bernatowicz
, p. 3055 - 3060 (2007/10/02)
Fmoc-Arg(ω,w')(Boc)2-OH and Boc-Arg(ω,w')(Cbz)2-OH were prepared in two steps: Guanylation of Cu(II)-ornithine complex at N(δ) with N,N'-bis urethane protected derivatives of 1-guanylpyrazole, followed by N(α)-protection using either 9-fluorenylmethyl succinimidylcarbonate or di-t-butyl-dicarbonate in the presence of EDTA. The overall yields of these products (2 steps) were 65% and 73%.
Urethane protected derivatives of 1-guanylpyrazole for the mild and efficient preparation of guanidines
Bernatowicz, Michael S.,Wu, Youling,Matsueda, Gary R.
, p. 3389 - 3392 (2007/10/02)
Bis-urethane protected derivatives of 1-guanylpyrazole were prepared and found to readily react with relatively amines at room temperature to produce bis-protected guanidines in good yields. Simultaneous removal of both protecting groups from these products efficiently produced monosubstituted guanadines.
