study we have developed an effective one-pot method for the preparation of new quaternized pyridine derivatives 4-6 of the betulinic series based on the reaction of the initial triterpenes 1-3 with the Tempo+Br3 - reagent in the pyridine. The synthesized and initial compounds were tested for their antimicrobial and antifungal activity. Results: The data presented in this document indicate that all synthesized
Prakash, Lalit; Garg, Gita, Journal of the Indian Chemical Society, 1981, vol. 58, p. 96 - 97
作者:Prakash, Lalit、Garg, Gita
DOI:——
日期:——
Mukherjee; Badruddoza, Journal of the Indian Chemical Society, 1981, vol. 58, # 1, p. 97 - 98
作者:Mukherjee、Badruddoza
DOI:——
日期:——
Hase, T. A.; Suokas, E.; Weckman, A., Synthetic Communications, <hi>1981</hi>, vol. 11, # 6, p. 489 - 492
作者:Hase, T. A.、Suokas, E.、Weckman, A.
DOI:——
日期:——
Trofimov synthesis of betulin derivatives with 2,3-annelated pyrrole
作者:A. V. Orlov、G. R. Khazipova、N. G. Komissarova、O. V. Shitikova、L. V. Spirikhin、M. S. Yunusov
DOI:10.1007/s10600-011-9780-0
日期:2011.1
Lupane-type triterpenoid derivatives containing a 2,3-annelated 1H-pyrrole or an N-vinylpyrrole moiety were synthesized by reaction of 28-OTr-lup-20(29)-en-3-one oxime and acetylene in KOH/DMSO superbase medium at atmospheric pressure.