Derivatives of .beta.-adrenergic antagonists: N-nitrosopropranolol and N-hydroxypropranolol and its aldonitrone
作者:Shoufang Zhang、Mark L. Powell、Wendel L. Nelson、Peter J. Wirth
DOI:10.1021/jm00357a027
日期:1983.3
Potential precursors to chemically reactive species derived from the beta-adrenergic antagonist propranolol were synthesized and tested for mutagenicity in the Ames Salmonella assay. N-Hydroxypropranolol (1), the corresponding aldonitrone, 3-(1-naphthoxy)-2-hydroxypropionaldehyde N-isopropylnitrone (2), and N-nitrosopropranolol (3) were prepared and tested. N-Hydroxypropranolol (1) was obtained by direct alkylation of 3-(1-naphthoxy)-1-bromo-2-propanol with N-isopropylhydroxylamine and isolated as its neutral oxalate or HBr salt. The aldonitrone (2) was obtained by mercuric oxide oxidation of the hydroxylamine. N-Nitrosopropranolol (3) was prepared by treating propranolol with nitrous acid. None of the compounds was mutagenic in the Ames assay with Salmonella typhimurium TA-98 and TA-100 strains, either in the absence or in the presence of the S-9 liver fraction from Arochlor 1254 treated rats. None of the compounds was significantly toxic to the bacteria, except for slight toxicity of the oxalate salt of 1.
Mazzei; Sottofattori; Balbi, Il Farmaco, 1991, vol. 46, # 9, p. 1043 - 1049
作者:Mazzei、Sottofattori、Balbi、Robbiano
DOI:——
日期:——
ZHANG, SHOUFANG;POWELL, M. L.;NELSON, W. L.;WIRTH, P. J., J. MED. CHEM., 1983, 26, N 3, 455-458
作者:ZHANG, SHOUFANG、POWELL, M. L.、NELSON, W. L.、WIRTH, P. J.