Brevnova,T.N. et al., Journal of general chemistry of the USSR, 1973, vol. 43, p. 2219 - 2222
作者:Brevnova,T.N. et al.
DOI:——
日期:——
Petrow et al., Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1956, p. 1445;engl.Ausg.S.1485
作者:Petrow et al.
DOI:——
日期:——
Synthesis and biological activity of semisynthetic silicon-containing penicillins and cephalosporins
作者:G. A. Veinberg、A. M. Katz、É. P. Popova、É. Ya. Lukevits、É. A. Rudzit、G. N. Neshchadim、T. P. Radkevich
DOI:10.1007/bf00765661
日期:1980.10
The structure of the obtained compounds was confirmed by elemental analysis and spectrometry. UV spectra of the semisyntheticcephalosporins contain a characteristic absorption band in the 260-262 nm region. Three bands were detected in the IR spectra of penicillins and cephalosporins in the region of 1610-1600, 1690-1670, and 1780-1770 cm-: assigned to carbonyl stretching vibrations of amide, ionized