Synthesis, crystal structures and antibacterial activity studies of aza-derivatives of phytoalexin from cotton plant – gossypol
作者:Piotr Przybylski、Krystian Pyta、Joanna Stefańska、Małgorzata Ratajczak-Sitarz、Andrzej Katrusiak、Adam Huczyński、Bogumil Brzezinski
DOI:10.1016/j.ejmech.2009.05.032
日期:2009.11
Using Gossypol (GOS) extracted from cotton seeds, a series of its Schiff bases (1–18) and hydrazones (19–27) have been synthesized and evaluated for their antimicrobial activities against Gram-positive bacteria, Gram-negative bacteria and yeast-like organisms. Of the 27 aza-derivatives of gossypol, 11 have been found active against the microorganisms tested, similar to gossypol. Crystal structures
从棉花种子用棉酚(GOS)萃取,一系列其席夫碱(1 - 18)和腙(19 - 27)已被合成并评价了它们对革兰氏阳性菌,革兰氏阴性菌和抗菌活性酵母像生物。在棉酚的27种氮杂衍生物中,发现有11种对所测试的微生物具有活性,类似于棉酚。棉酚的新席夫碱(化合物7)和(化合物25)的晶体结构揭示了在所研究的两种氮杂衍生物中存在两种不同的互变异构体。通过FT-IR,NMR和MS方法表征了棉酚的新合成的氮杂衍生物。