CN102746326A - 对硝基肉桂酸金属配合物、其制备方法及其用途 - Google Patents
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Abstract
本发明属于肉桂酸衍生物制备技术领域,特别涉及一种对硝基肉桂酸金属配合物、其制备方法及其用途。该配合物是将对硝基肉桂酸溶于氢氧化钠溶液后,再加入过渡族金属元素的硫酸盐水溶液得到对硝基肉桂酸金属盐,然后将对硝基肉桂酸金属盐与二胺氨水溶液混合,加入甲醇溶剂,于室温下静置至甲醇挥发完毕,得到对硝基肉桂酸金属配合物;所述过渡族金属元素为铜、钴、镉、镍或锌。本发明的对硝基肉桂酸金属配合物脲酶抑制活性高,具有更好的药用性,该配合物可以用于制备脲酶抑制剂。
Description
技术领域
本发明属于肉桂酸衍生物制备技术领域,特别涉及一种对硝基肉桂酸金属配合物、其制备方法及其用途。
背景技术
肉桂酸(cinnamic acid),又名β-苯丙烯酸(β-phenylacrylic acid)、3-苯基-2-丙烯酸(3-phenylprop-2-enoic acid),是从肉桂皮或安息香中分离得到的有机酸,安全无毒,呈白色结晶,微有桂皮气味。肉桂酸是一种重要的精细化工中间体,广泛应用于医药、香料、金属或食品防腐剂、感光材料和农药等领域。
自从Rosenberg在1965年偶然发现顺铂具有抗癌活性以来,金属配合物的药用性引起了人们的广泛关注。肉桂酸与胺类溶于有机溶剂后,可以进一步与金属离子发生配位作用,形成一系列配位化合物。肉桂酸衍生物作为医药中间体,已经体现出其具有相当的发展潜力,进一步深入研究其金属配合物具有一定的理论和实际价值,尤其是合成的一系列新型肉桂酸衍生物金属配合物,对它们的生物活性进行系统的研究具有十分重要的意义。
发明内容
本发明的目的在于提供一种对硝基肉桂酸金属配合物、其制备方法及其用途。
本发明所述的对硝基肉桂酸金属配合物,是将对硝基肉桂酸溶于氢氧化钠溶液后,再加入过渡族金属元素的硫酸盐水溶液得到对硝基肉桂酸金属盐,然后将对硝基肉桂酸金属盐与二胺氨水溶液混合,加入甲醇溶剂,于室温下静置至甲醇挥发完毕,得到对硝基肉桂酸金属配合物;所述过渡族金属元素为铜、钴、镉、镍或锌。
所述的对硝基肉桂酸金属配合物的制备方法,包括如下步骤:
(1)将对硝基肉桂酸溶于氢氧化钠溶液,控制溶液pH值为6~7,并加入过渡族金属元素的硫酸盐水溶液,搅拌均匀后经抽滤制得对硝基肉桂酸金属盐;对硝基肉桂酸和硫酸盐摩尔比为2:1;所述过渡族金属元素为铜、钴、镉、镍或锌;
(2)将二胺溶于氨水,配成溶液;所述二胺优选乙二胺、1,2-丙二胺或N,N-二甲基乙二胺。
(3)将步骤(1)得到的对硝基肉桂酸金属盐和步骤(2)得到的二胺氨水溶液混合,加入甲醇溶剂,于室温下静置至甲醇挥发完毕,得到对硝基肉桂酸金属配合物,其中对硝基肉桂酸金属盐与二胺的摩尔比为2:1~1:2。
其中所述的对硝基肉桂酸结构式如下:
所述的对硝基肉桂酸的制备方法为:
(1)在乙醇溶剂中加入对硝基苯甲醛和丙二酸,对硝基苯甲醛与丙二酸的物质的量为1:1-1:2,乙醇溶剂的体积为对硝基苯甲醛和丙二酸总质量的2-2.5倍;乙醇以ml计,对硝基苯甲醛和丙二酸以g计;
(2)加热至对硝基苯甲醛和丙二酸完全溶解,向反应体系中加入溶剂体积1/10-2/10的吡啶作为催化剂,于85-95℃反应7-10小时;
(3)反应结束后,抽滤得白色或淡黄色的反应粗产物;
(4)将上述粗产物溶于氢氧化钠溶液,控制pH值7~8使制得的肉桂酸完全变成钠盐溶于水中,抽滤除去不溶的杂质,再向剩余液体中加入浓盐酸,控制pH值为6.5~7,使得肉桂酸沉淀出来,制得纯化的对硝基肉桂酸。
该配合物用于制备脲酶抑制剂。
本发明的有益效果在于:
本发明的对硝基肉桂酸金属配合物脲酶抑制活性高,具有更好的药用性,该配合物可以用于制备脲酶抑制剂。
具体实施方式
以下结合实施例对本发明做进一步说明。
实施例中对硝基肉桂酸的制备方法如下:
(1)在乙醇溶剂中加入对硝基苯甲醛和丙二酸,对硝基苯甲醛与丙二酸的物质的量为1:1,乙醇溶剂的体积为对硝基苯甲醛和丙二酸总质量的2倍;乙醇以ml计,对硝基苯甲醛和丙二酸以g计;
(2)加热至对硝基苯甲醛和丙二酸完全溶解,向反应体系中加入溶剂体积1/10的吡啶作为催化剂,于90℃反应8小时;
(3)反应结束后,抽滤得白色或淡黄色的反应粗产物;
(4)将上述粗产物溶于氢氧化钠溶液,控制pH值7~8使制得的肉桂酸完全变成钠盐溶于水中,抽滤除去不溶的杂质,再向剩余液体中加入浓盐酸,控制pH值为6.5~7,使得肉桂酸沉淀出来,制得纯化的对硝基肉桂酸。
对硝基肉桂酸金属盐的制备:
将对硝基肉桂酸溶于氢氧化钠溶液后,控制pH值为6~7,再加入过渡族金属元素的硫酸盐水溶液得到对硝基肉桂酸金属盐;对硝基肉桂酸和硫酸盐摩尔比为2:1。
实施例1
对硝基肉桂酸合铜的制备方法为:
将对硝基肉桂酸铜盐(0.01mmol)溶于15ml甲醇溶液中,置于25ml烧杯中,室温下搅拌15-20分钟。向溶液中加入先配置好的0.01mmol/ml的乙二胺氨水溶液2ml,室温下继续搅拌15-20分钟。如溶液不为澄清透明溶液,则过滤,取滤液置于干净25ml烧杯中,室温下静置10天,出现大量蓝色或蓝紫色晶体。过滤得到晶体,用蒸馏水冲洗三次,置于无水氯化钙干燥器内干燥,得到对硝基肉桂酸合铜(化合物1)0.0365g,产率:81.47%。对硝基肉桂酸铜盐中铜的化合价为二价。
实施例2
对硝基肉桂酸合锌的制备方法为:
将对硝基肉桂酸锌盐(0.01mmol)溶于10乙醇溶液中,置于25ml烧杯中,室温下搅拌15-20分钟。向溶液中加入先配置好的0.01mmol/ml的1,2-丙二胺氨水溶液0.5ml,室温下继续搅拌15-20分钟。如溶液不为澄清透明溶液,则过滤,取滤液置于干净25ml烧杯中,室温下静置8天,出现大量淡黄色透明晶体。过滤得到晶体,用蒸馏水冲洗三次,置于无水氯化钙干燥器内干燥,得到对硝基肉桂酸合锌(化合物2)0.0342g,产率:76.17%。对硝基肉桂酸锌盐锌的化合价为二价。
实施例3
对硝基肉桂酸合镍的制备方法为:
将对硝基肉桂酸镍盐(0.01mmol)溶于10-15ml甲醇溶液中,置于25ml烧杯中,室温下搅拌15-20分钟。向溶液中加入先配置好的0.01mmol/ml的N,N-二甲基乙二胺氨水溶液1ml,室温下继续搅拌15-20分钟。如溶液不为澄清透明溶液,则过滤,取滤液置于干净25ml烧杯中,室温下静置10天,出现大量绿色透明晶体。过滤得到晶体,用蒸馏水冲洗三次,置于无水氯化钙干燥器内干燥,得到对硝基肉桂酸合镍(化合物3)0.0132g,产率:29.79%。对硝基肉桂酸镍盐镍的化合价为二价。
实施例4
对硝基肉桂酸金属配合物抗脲酶活性研究:
方法:25μL巨豆脲酶(10kU/L)加25μL样品溶液(不同浓度,DMSO/H2O=1:1溶解)于96孔培养板中37℃培养1小时,再加入0.2mL 100mM HEPES缓冲液(pH6.8)(内含:500mM尿素和0.002%酚红),用乙酰氧肟酸作为阳性对照,计算缓冲液pH由6.8升至7.7时所用时间(酚红显色剂变色),并在570nm波长下用酶标仪检测OD值,计算IC50。
酶活抑制率=(T样品-T空白)/T样品
活性试验结果:
铜,锌,镍三种肉桂酸金属配合物的脲酶抑制活性顺序为铜>锌>镍。上述实施例中提到的三种配合物的抑制率分别为98.16%、73.89%和32.05%,IC50值分别为0.51μM、12.18μM和31.73μM,阳性对照的IC50值为43.92μM。
实施例5
将实施例1~3制得的三种晶体进行X-ray单晶衍射,数据如下表1所示:
表1 实施例1~3三种晶体的X-ray单晶衍射检测数据表
Claims (4)
1.一种对硝基肉桂酸金属配合物,其特征在于:将对硝基肉桂酸溶于氢氧化钠溶液后,再加入过渡族金属元素的硫酸盐水溶液得到对硝基肉桂酸金属盐,然后将对硝基肉桂酸金属盐与二胺氨水溶液混合,加入甲醇溶剂,于室温下静置至甲醇挥发完毕,得到对硝基肉桂酸金属配合物;所述过渡族金属元素为铜、钴、镉、镍或锌。
2.一种权利要求1所述的对硝基肉桂酸金属配合物的制备方法,其特征在于包括如下步骤:
(1)将对硝基肉桂酸溶于氢氧化钠溶液,控制溶液pH值为6~7,并加入过渡族金属元素的硫酸盐水溶液,搅拌均匀后经抽滤制得对硝基肉桂酸金属盐;对硝基肉桂酸和硫酸盐摩尔比为2:1;所述过渡族金属元素为铜、钴、镉、镍或锌;
(2)将二胺溶于氨水,配成溶液;
(3)将步骤(1)得到的对硝基肉桂酸金属盐和步骤(2)得到的二胺氨水溶液混合,加入甲醇溶剂,于室温下静置至甲醇挥发完毕,得到对硝基肉桂酸金属配合物,其中对硝基肉桂酸金属盐与二胺的摩尔比为2:1~1:2。
3.根据权利要求2所述的对硝基肉桂酸金属配合物,其特征在于所述的对硝基肉桂酸的制备方法为:
(1)在乙醇溶剂中加入对硝基苯甲醛和丙二酸,对硝基苯甲醛与丙二酸的物质的量为1:1-1:2,乙醇溶剂的体积为对硝基苯甲醛和丙二酸总质量的2-2.5倍;乙醇以ml计,对硝基苯甲醛和丙二酸以g计;
(2)加热至对硝基苯甲醛和丙二酸完全溶解,向反应体系中加入溶剂体积1/10-2/10的吡啶作为催化剂,于85-95℃反应7-10小时;
(3)反应结束后,抽滤得白色或淡黄色的反应粗产物;
(4)将上述粗产物溶于氢氧化钠溶液,控制pH值7~8使制得的肉桂酸完全变成钠盐溶于水中,抽滤除去不溶的杂质,再向剩余液体中加入浓盐酸,控制pH值为6.5~7,使得肉桂酸沉淀出来,制得纯化的对硝基肉桂酸。
4.一种权利要求1所述的对硝基肉桂酸金属配合物的用途,其特征在于该配合物用于制备脲酶抑制剂。
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