Synthesis and preliminary pharmacological evaluation of some cytisine derivatives
作者:Caterina Canu Boido、Fabio Sparatore
DOI:10.1016/s0014-827x(99)00049-x
日期:1999.7
Thirty-one N-derivatives of cytisine were prepared in order to modify its pharmacological profile and to obtain compounds of potential therapeutic interest either at a peripheral or central level, particularly as nicotinic ligands with improved ability to cross the blood-brain barrier. Actually, with the introduction of different kinds of substituent on the basic nitrogen of cytisine a variety of activities were observed, both in vivo (analgesic, dopamine antagonism, antihypertensive, inhibition of stress-induced ulcers, antiinflammatory, protection from PAF-induced mortality, hypoglycemic) and in vitro (positive cardio-inotropic, beta-adrenergic antagonism, alpha(1)- and alpha(2)-antagonism, inhibition of PAF-induced platelet aggregation). Six randomly selected compounds were tested for the ability to recognize a central nicotinic receptor and four of them exhibited K-i values; In the range 30-163 nM. (C) 1999 Elsevier Science S.A. All rights reserved.
An Efficient Synthetic Method for N-Alkylcytisines
作者:I. M. Sakhautdinov、A. F. Mukhamet’yanova、A. G. Dosniyazova、V. I. Vinogradova、A. N. Lobov、M. S. Yunusov
DOI:10.1007/s10600-019-02703-w
日期:2019.3
analgesic, etc. [1–7]. Therefore, the alkaloid cytisine and its derivatives are promising compounds for possible modification and design of new medicines based on them. Herein the development of a convenient method for alkylating cytisine at the secondary amine is communicated. Compounds 1a,b were synthesized from cytisine and nonyl iodide and dodecyl bromide by heating the mixture at 150°C for 6 h