Desilylation of<i>tert</i>-Butyldimethylsilyl Ethers of Phenols
作者:Achintya K. Sinhababu、Masami Kawase、Ronald T. Borchardt
DOI:10.1055/s-1988-27681
日期:——
Treatment of tert-butyldimethylsilyl ethers of phenols and diphenols with potassium fluoride in the presence of catalytic amounts of hydrobromic acid in dimethylformamide generates the corresponding phenols or diphenols in high yields.
The invention is concerned with novel N-(4-carbamimidoyl-phenyl)-glycine derivatives of the formula:
1
wherein R
1
, E, X
1
to X
4
and G
1
and G
2
are as defined in the description and the claims, as well as hydrates or solvates and physiologically usable salts thereof.
The invention is concerned with novel N-(4-carbamimidoyl-phenyl)-glycine derivatives of the formula:
1
wherein R
1
, E, X
1
to X
4
and G
1
and G
2
are as defined in the description and the claims, as well as hydrates or solvates and physiologically usable salts thereof.
The invention is concerned with novel N-(4-carbamimidoyl-phenyl)-glycine derivatives of the formula:
wherein R1, E, X1 to X4 and G1 and G2 are as defined in the description and the claims, as well as hydrates or solvates and physiologically usable salts thereof.