新型桥连双卟啉化合物的合成及结构表征

通过将4,4′-二羧基-2,2′-联吡啶、2,6-二溴甲基吡啶、2,6-二羟甲基吡啶和1,8-二氨基萘分别与5-(4-羟基苯基)-10,15,20-三苯基卟啉(1a)、5-(4-甲酰苯基)-10,15,20-三苯基卟啉(1b)和5-[4-(4′-溴代丁氧基)苯基]-10,15,20-三苯基卟啉(1c)反应,合成了3类新型的双卟啉化合物2a-2e,经IR,¹HNMR,MS,UV-Vis光谱及元素分析对中间体和目标化合物的结构进行了表征.     

氨基酸桥联新型手性锌双卟啉配合物的合成与表征

生命系统中的金属卟啉生物大分子在卟啉的Ｓｏｒｅｔ带均表现出诱导圆二色性（ＩｎｄｕｃｅｄＦｉｇ．１Ｓｔｒｕｃｔｕｒｅｏｆａｍｉｎｏａｃｉｄｂｒｉｄｇｅｄｚｉｎｃｐｏｒ┐ｐｈｙｒｉｎｄｉｍｅｒＯ,Ｏ┐Ｃ２┐ＡＡ┐Ｃ２┐（ＴＰＰ）２Ｚｎ２Ｒ＝Ｂｎ,ＡＡ＝Ｐ...     

一种新型卟啉-脂质体衍生物的合成及表征

采用人工合成的N,N-二.十六烷基-6-溴代-L-甘氨酰胺(BrC5Gly2C16H33)与5,10,15-三苯基-20-对羟基苯基卟啉(HPTPP)相连接,合成了一种新型卟啉-脂质体衍生物(P-L),用元素分析、紫外可见光谱、核磁共振、红外光谱以及荧光光谱等方法进行了表征,并对其谱学性质进行了研究.     

新型类卟啉手性双噁唑啉化合物的合成

以对硝基苯甲醛与3,4-二甲基吡咯-2-甲酸乙酯缩合,然后将缩合产物的酯基水解成羧基得二元酸,由羧酸与手性氨基醇一步法合成了6个具有C2对称的类卟啉手性双噁唑啉化合物。     

一种新型二硒卟啉的合成及其与牛血清白蛋白的相互作用

以5-(4-羟基苯基)-10,15,20-三苯基卟啉和硒粉为原料,合成了新型二硒双卟啉,用紫外可见光谱（UV-Vis）,红外光谱（IR）,核磁共振氢谱（1H NMR）,高分辩质谱（HR-MS）对目标产物的结构进行了确认。同时,考察了新化合物与牛血清白蛋白(BSA)相互作用的荧光光谱,由实验数据求得该二硒双卟啉与BSA的结合常数Ksv＝3.35×104 L/mol。分析荧光结果表明二硒双卟啉与BSA之间发生了较强的静态猝灭。     

一种新铂钌卟啉的合成

用一种可靠的方法合成了一种新的铂钌双金属卟啉｛Cis-Pt(DMSO)[RuPyPP(CO)]｝Cl2。它将被用在燃烧电池中,作为阴极（氧电极）的催化剂。     

铜卟啉,钒氧卟啉的合成

铜卟啉、钒氧卟啉的合成王煜，何明威，王军强，武靖荣（山西大学化学系太原０３０００６）关键词卟啉，铜卟啉，钒氧卟啉，合成合成金属卟啉，通常是先合成卟啉，再将卟啉与金属盐反应，经柱色谱分离后得到目标化合物［１］．本文报道以酚为溶剂，使吡咯、芳香醛和乙酸铜...     

一种新型含硒有机锗化合物的合成及其抗癌活性

合成了一种新型的含硒有机锗化合物 ,其结构经元素分析 ,IR和1HNMR表征。生物活性结果表明当化合物浓度为 10 -4mol·L -1时 ,对人体肝癌细胞的生长抑制率达 81.4 %。     

新型双硒化合物合成及其对汞离子的识别研究

合成了9,10-二(2-苄硒基)乙氧基蒽,并通过1H NMR、13C NMR、IR和MS对其进行了结构表征,采用荧光光谱及1H NMR滴定法研究了其对汞离子的识别。结果表明,所合成的化合物对汞离子具有较强的选择性识别性能,在识别过程中亚甲基的峰位发生了较大变化,同时荧光明显增强,呈现出典型"关-开"荧光化学传感器的特性。     

含硫醚、硒醚及二硫键链接侧链的小檗碱衍生物的合成及体外抗肿瘤活性

为开发高效低毒的抗肿瘤天然产物衍生物,依据药物拼合原理设计并合成了10个新型小檗碱衍生物。将盐酸小檗碱与含单硫醚、单硒醚和二硫键脂肪链片段通过缩合反应得到目标化合物,其化学结构均经过核磁共振氢谱、碳谱以及高分辨质谱确证。采用噻唑蓝（MTT）法考察其体外抗肿瘤活性,结果表明,7个化合物针对不同的癌细胞株的抑制活性优于盐酸小檗碱,同时对人正常肝细胞L02的毒性较低。化合物3e的体外抗肿瘤活性最佳(针对BEL-7402的IC₅₀值为8.70μmol/L,选择性指数为3.61),可对其深入研究用以开发高效低毒的抗肿瘤药物。     

Synthesis, Conformation, and Metabolism of a Selenium Bilirubin

A symmetrical C(10)-selena-bilirubin analog, 8,12-bis(2-carboxyethyl)-7,13-dimethyl-2,3,17,18-tetraethyl-10-selenabiladiene-ac-1,19(21H,24H)-dione was synthesized from 8-(2-carboxyethyl)-2,3-diethyl-7-methyl-(10H)-dipyrrin-1-one in one step by reaction with diselenyl dichloride. The selena-rubin exhibited UV-vis and NMR spectroscopic properties similar to those of the parent mesobilirubin, and like bilirubin and mesobilirubin, it adopts an intramolecularly hydrogen-bonded conformation, shaped like a ridge-tile but with a steeper pitch. The longer C–Se bond lengths (2.2Å) and smaller bond angles at C–Se–C (88°), as compared to C–CH₂–C (1.5Å, 106°), lead to an interplanar angle between the two dipyrrinones of only 72°, which is considerably less than that of bilirubin (100°) and close to that (74°) of its 10-thia-rubin analog. Despite the conformational distortion, the sensitivity of Se toward oxidation and the typically weak C–Se bond, the selena-rubin is metabolized in normal rats, like bilirubin, to acyl glucuronides, which are secreted into bile. In mutant (Gunn) rats lacking bilirubin glucuronosyl transferase (UGT1A1), glucuronide or other metabolites of the selena-rubin were not detected in bile, demonstrating the importance of hepatic glucuronidation for its biliary excretion.     

Synthesis,Conformation, and Metabolism of a Selenium Bilirubin

Summary. A symmetrical C(10)-selena-bilirubin analog, 8,12-bis(2-carboxyethyl)-7,13-dimethyl-2,3,17,18-tetraethyl-10-selenabiladiene-ac-1,19(21H,24H)-dione was synthesized from 8-(2-carboxyethyl)-2,3-diethyl-7-methyl-(10H)-dipyrrin-1-one in one step by reaction with diselenyl dichloride. The selena-rubin exhibited UV-vis and NMR spectroscopic properties similar to those of the parent mesobilirubin, and like bilirubin and mesobilirubin, it adopts an intramolecularly hydrogen-bonded conformation, shaped like a ridge-tile but with a steeper pitch. The longer C–Se bond lengths (2.2Å) and smaller bond angles at C–Se–C (88°), as compared to C–CH₂–C (1.5Å, 106°), lead to an interplanar angle between the two dipyrrinones of only 72°, which is considerably less than that of bilirubin (100°) and close to that (74°) of its 10-thia-rubin analog. Despite the conformational distortion, the sensitivity of Se toward oxidation and the typically weak C–Se bond, the selena-rubin is metabolized in normal rats, like bilirubin, to acyl glucuronides, which are secreted into bile. In mutant (Gunn) rats lacking bilirubin glucuronosyl transferase (UGT1A1), glucuronide or other metabolites of the selena-rubin were not detected in bile, demonstrating the importance of hepatic glucuronidation for its biliary excretion.     

新型含硫代乙酸酯缺电子环蕃的合成

以3,5-二甲基苯酚为原料,经4步反应合成了1,1’-【{5-[3-(乙酰硫基)丙氧基]-1,3-亚苯基}双(亚甲基)】双{[(4,4’-联吡啶)-1-鎓]}二六氟磷酸盐(4);4与1,4-二溴甲基苯和萘模板在低温反应制得含硫代乙酸酯的缺电子环蕃(5);5经连续萃取及离子交换除去萘模板合成了新型含硫代乙酸缺电子环蕃——5,13,20,27-四氮杂七环[25,2,2,22,5,17,11,213,16,217,20,222,25]四十-9-(1-丙基硫代乙酸酯)氧-1(28),2,4,7,9,12,14,16,18,21,23,26,29,31,33,35,37,39-十八烯四六氟磷酸盐(6),其结构经1H NMR和13C NMR表征。     

Synthesis of Novel a PEG-Lysine Polymer

Summary: A novel PEG functionalized-L-lysine-α-amino-N-carboxy anhydride monomer (L-Lys(PEG-(COOBzl))-NCA) is prepared for the synthesis of carboxylic acid terminated, PEG-sheathed poly-lysine biopolymers.     

一种新型荧烷染料的合成

以间二乙氨基苯酚(1)和邻苯二甲酸酐(2)为原料制得2一羧基-4'-二乙氨基-2'-羟基二苯甲酮(3);在浓硫酸作用下,3与2-甲基-5-对甲氧基苯基-1,3,4-噁二唑(4)反应合成了一种新型的荧烷染料--2-(5-甲基-1,3,4-噁二唑-2-基)-6-二乙氨基荧烷,其结构经1H NMR,IR和元素分析表征.合成3的较适宜条件为:132mmol,n(1):n(2)=1.0:1.2,36%NaOH 60 mL,反应时间10 h,分解时间6 h,收率71.8%,纯度83.4%(HPLC).     

一种胞苷衍生物的合成

以胞苷为原料,首先通过单乙酰化反应保护-NH2;再分别用二对甲氧基三苯甲基氯和氯甲氧基三异丙基硅烷保护5-′OH和2-′OH;被保护的胞苷经磷酰化反应合成了一种用于制备RNA长链的胞苷衍生物单体——N-乙酰基-5′-O-二对甲氧基三苯甲基-2′-O-三异丙基硅氧甲基-3′-O-双(N,N-二异丙基氨基)(2-氰乙氧基)磷基胞苷(1),总收率29.8%。1及其中间体的结构经1H NMR,MS和元素分析表征。