Synthesis, antitumor and antimicrobial activities of 4-(4-chlorophenyl)-3-cyano-2-(β-O-glycosyloxy)-6-(thien-2-yl)-nicotinonitrile
作者:Hassan A. El-Sayed、Ahmed H. Moustafa、Abd El-Fattah Z. Haikal、Rajab Abu-El-Halawa、El Sayed H. El Ashry
DOI:10.1016/j.ejmech.2011.04.019
日期:2011.7
4-(4-Chlorophenyl)-3-cyano-6-(thien-2-yl)-1H-pyridin-2-one (2) was obtained by reaction of 2-acetyl thiophene with 4-chlorobenzaldehyde and ethyl cyanoacetate in presence of ammonium acetate or by the reaction of α,β-unsaturated compound 1 with ethyl cyanoacetate in the presence of ammonium acetate. 4-(4-Chlorophenyl)-2-(2′,3′,4′,6′-tetra-O-acetyl-β-d-gluco/galactopyranosyloxy)-6-(thien-2-yl)nicotinonitrile
通过2-乙酰基噻吩与4-氯苯甲醛和氰基乙酸乙酯的反应,制得4-(4-氯苯基)-3-氰基-6-(噻吩-2-基)-1 H-吡啶-2-一(2)。存在乙酸铵或在乙酸铵存在下通过α,β-不饱和化合物1与氰基乙酸乙酯反应。4-(4-氯苯基)-2-(2',3',4',6'-四-O-乙酰基-β - d-葡萄糖/吡喃半乳糖基氧基)-6-(噻吩-2-基)烟腈(5a和5b),核糖苷11,木糖苷12和乳糖苷16是通过反应制备的。2与糖基/半乳糖/木糖/乳糖溴化物和全乙酰化木糖/下常规和微波辐射的方法核糖。反应已经区域选择性地产生了O-糖苷而不是N-糖苷。苷图5a,b,核糖核苷11,木糖苷12和乳糖苷16在Et的存在下脱乙酰化3 N / MeOH和几滴水,得到图7a,b,13,14和17。新合成的化合物的结构通过IR,1 H,13 C NMR光谱和微量分析。筛选这些化合物的选定成员的抗肿瘤和抗菌活性。