CN114591345B - 一类罗丹明类衍生物rh-gp-x及其制备方法和在革兰氏阳性菌检测中的应用 - Google Patents
一类罗丹明类衍生物rh-gp-x及其制备方法和在革兰氏阳性菌检测中的应用 Download PDFInfo
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- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical class [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 241000192125 Firmicutes Species 0.000 title claims abstract description 16
- 238000001514 detection method Methods 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract 6
- 241000894006 Bacteria Species 0.000 claims abstract 2
- 238000006243 chemical reaction Methods 0.000 claims description 22
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 21
- PXIPVTKHYLBLMZ-UHFFFAOYSA-N Sodium azide Chemical compound [Na+].[N-]=[N+]=[N-] PXIPVTKHYLBLMZ-UHFFFAOYSA-N 0.000 claims description 18
- DILRJUIACXKSQE-UHFFFAOYSA-N n',n'-dimethylethane-1,2-diamine Chemical compound CN(C)CCN DILRJUIACXKSQE-UHFFFAOYSA-N 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 241000193830 Bacillus <bacterium> Species 0.000 claims description 7
- 238000010992 reflux Methods 0.000 claims description 7
- -1 rhodamine compound Chemical class 0.000 claims description 7
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 claims description 6
- 238000004440 column chromatography Methods 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
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- 238000003756 stirring Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- MUSLHCJRTRQOSP-UHFFFAOYSA-N rhodamine 101 Chemical compound [O-]C(=O)C1=CC=CC=C1C(C1=CC=2CCCN3CCCC(C=23)=C1O1)=C2C1=C(CCC1)C3=[N+]1CCCC3=C2 MUSLHCJRTRQOSP-UHFFFAOYSA-N 0.000 claims description 5
- 229940043267 rhodamine b Drugs 0.000 claims description 4
- RLOWWWKZYUNIDI-UHFFFAOYSA-N phosphinic chloride Chemical compound ClP=O RLOWWWKZYUNIDI-UHFFFAOYSA-N 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- WGTODYJZXSJIAG-UHFFFAOYSA-N tetramethylrhodamine chloride Chemical compound [Cl-].C=12C=CC(N(C)C)=CC2=[O+]C2=CC(N(C)C)=CC=C2C=1C1=CC=CC=C1C(O)=O WGTODYJZXSJIAG-UHFFFAOYSA-N 0.000 claims description 3
- 230000008685 targeting Effects 0.000 abstract description 3
- 238000003786 synthesis reaction Methods 0.000 abstract description 2
- 238000010186 staining Methods 0.000 abstract 1
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 7
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000007850 fluorescent dye Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000012295 chemical reaction liquid Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000002189 fluorescence spectrum Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
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- 230000035945 sensitivity Effects 0.000 description 2
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- 241000191940 Staphylococcus Species 0.000 description 1
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- 230000002441 reversible effect Effects 0.000 description 1
- 238000004557 single molecule detection Methods 0.000 description 1
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Abstract
本发明涉及化学合成领域,具体的涉及一类罗丹明类衍生物RH‑GP‑X及其制备方法和在革兰氏阳性菌检测中的应用。所述的罗丹明衍生物RH‑GP‑X具有如(Ⅰ)所示的结构通式。其中,R1=R2=R3=R4=H;或R1=R4=H,R2=‑CH2CH3,R3=‑CH3;或R1=R2=‑CH3,R3=R4=H;或R1=R2=‑CH2CH3,R3=R4=H;或R1和R4一起形成‑(CH2)3‑,R2和R3一起形成‑(CH2)3‑。本发明构建了一类罗丹明衍生物RH‑GP‑X,利用正电荷的靶向作用可以靶向聚集于革兰氏染色阳性菌,具有快速检测、操作简便等优势。
Description
技术领域
本发明涉及化学合成领域,具体的涉及一类罗丹明类衍生物RH-GP-X及其制备方法和在革兰氏阳性菌检测中的应用。
背景技术
罗丹明是一类具有优异光学性质的染料,与其他常用的荧光染料相比,罗丹明类荧光染料具有光稳定性好、长波长吸收、吸收系数大、开环形式的高光稳定性、对pH不敏感、较宽的波长范围和较高的荧光量子产率和荧光寿命长等优点。因此被广泛应用在药理学、生理学、分子生物学、细胞生物学、分子遗传学、环境化学、单个分子检测、信息科学、荧光标记、激光染料等方面,是分析化学和生物医药科学在生物技术领域中最常用的荧光染料。
由于靶向性基团的存在,该试剂可以靶向聚集于革兰氏染色阳性菌,再利用罗丹明类衍生物RH-GP-X,在经历光诱导的开环和热诱导的闭环反应后,闭环状态在可见光区域是非荧光的。当用紫外光照射时,所得的开环状态具有强烈的荧光,且分子在溶液和固体基质中紫外线照射下都显示吸收“开启”和荧光“关闭”响应。该响应较为直观,能够成为快速的检测革兰氏阳性菌。现有技术中,还未见对该罗丹明类衍生物RH-GP-X检测革兰氏阳性菌的报道。
发明内容
本发明目的是提供一系列罗丹明类衍生物RH-GP-X的制备方法及对革兰氏阳性菌的检测技术。
本发明采用的技术方案是:一类罗丹明衍生物RH-GP-X,所述的罗丹明类衍生物RH-GP-X具有如(Ⅰ)所示的结构通式:
其中,
R1=R2=R3=R4=H;
或R1=R4=H,R2=-CH2CH3,R3=-CH3;
或R1=R2=-CH3,R3=R4=H;
或R1=R2=-CH2CH3,R3=R4=H;
或R1和R4一起形成-(CH2)3-,R2和R3一起形成-(CH2)3-。
上述的一类罗丹明类衍生物RH-GP-X的制备方法,包括如下步骤:将罗丹明类化合物,加入去水干燥的1,2-二氯乙烷,搅拌下滴加POCl3,加热回流,冷却至室温,去除溶剂,加入干燥乙腈,再加入叠氮化钠于室温下进行反应,升温至高温进行反应,冷却至室温后加入N,N-二甲基乙二胺进行反应,加水淬灭,萃取,经柱层析提纯得到RH-GP-X。
优选地,上述的一类罗丹明类衍生物RH-GP-X的制备方法,所述的罗丹明化合物为罗丹明B,四甲基罗丹明TMR,罗丹明101。
优选地,上述的一类罗丹明类衍生物RH-GP-X的制备方法,加热回流是在90℃加热回流4h。
优选地,上述的一类罗丹明类衍生物RH-GP-X的制备方法,室温下进行反应的时间为8-12h。
优选地,上述的一类罗丹明类衍生物RH-GP-X的制备方法,高温进行反应的温度为82℃,时间为40min。
优选地,上述的一类罗丹明类衍生物RH-GP-X的制备方法,加入N,N-二甲基乙二胺反应的时间为30min。
优选地,上述的罗丹明类衍生物RH-GP-X的制备方法,按摩尔比,罗丹明化合物:叠氮化钠:N,N-二甲基乙二胺=1:(2-3):(2-3)。
上述的一类罗丹明类衍生物RH-GP-X在革兰氏阳性菌检测中的应用。
优选地,上述的应用,所述的革兰氏阳性菌为芽孢杆菌。
本发明的有益效果是:由于靶向性基团的存在,该试剂可以靶向聚集于革兰氏阳性菌,再利用罗丹明类衍生物在经历光诱导的开环和热诱导的闭环反应后,闭环状态在可见光区域是非荧光的。当用紫外光照射时,所得的开环状态具有强烈的荧光,且分子在溶液和固体基质中紫外线照射下都显示吸收“开启”和荧光“关闭”响应。该响应较为直观,能够成为快速的检测革兰氏阳性菌。
附图说明
图1是实施例1制备的RH-GP-1的吸收强度随pH的变化趋势。
图2是实施例1制备的RH-GP-1的荧光强度随pH的变化趋势。
图3是芽孢杆菌显微下亮场成像。
图4是实施例1制备的RH-GP-1对芽孢杆菌荧光染色成像。
具体实施方式
本发明,罗丹明类衍生物RH-GP-X的反应通式如下:
其中,
R1=R2=R3=R4=H;
或R1=R4=H,R2=-CH2CH3,R3=-CH3;
或R1=R2=-CH3,R3=R4=H;
或R1=R2=-CH2CH3,R3=R4=H;
或R1和R4一起形成-(CH2)3-,R2和R3一起形成-(CH2)3-。
上述的一类罗丹明类衍生物RH-GP-X的制备方法,包括如下步骤:将罗丹明类化合物,加入去水干燥的1,2-二氯乙烷,搅拌下滴加POCl3,加热回流,冷却至室温,去除溶剂,加入干燥乙腈,再加入叠氮化钠于室温下进行反应,升温至高温进行反应,冷却至室温后加入N,N-二甲基乙二胺进行反应,加水淬灭,萃取,经柱层析提纯得到RH-GP-X。
优选地,上述的一类罗丹明类衍生物RH-GP-X的制备方法,所述的罗丹明化合物为罗丹明B,四甲基罗丹明TMR,罗丹明101。
优选地,上述的一类罗丹明类衍生物RH-GP-X的制备方法,加热回流是在90℃加热回流4h。
优选地,上述的一类罗丹明类衍生物RH-GP-X的制备方法,室温下进行反应的时间为8-12h。
优选地,上述的一类罗丹明类衍生物RH-GP-X的制备方法,高温进行反应的温度为82℃,时间为40min。
优选地,上述的一类罗丹明类衍生物RH-GP-X的制备方法,加入N,N-二甲基乙二胺反应的时间为30min。
优选地,上述的罗丹明类衍生物RH-GP-X的制备方法,按摩尔比,罗丹明化合物:叠氮化钠:N,N-二甲基乙二胺=1:(2-3):(2-3)。
上述的一类罗丹明类衍生物RH-GP-X在革兰氏阳性菌检测中的应用。
优选地,上述的应用,所述的革兰氏阳性菌为芽孢杆菌。
实施例1罗丹明B衍生物RH-GP-1
反应式如下:
称取1mol罗丹明B,加入去水干燥的1,2-二氯乙烷120mL,搅拌下滴加三氯氧磷0.18mL,90℃下加热回流4h。反应液冷却至室温,去除溶剂,加入120mL干燥乙腈,再加入2-3mol叠氮化钠于室温反应8-12h,升温82℃加热40min,冷却至室温后加入2-3mol的N,N-二甲基乙二胺反应30min,加水淬灭,二氯甲烷萃取,经柱层析提纯得到RH-GP-1。HRMS:527.3241。
实施例2 TMR罗丹明衍生物RH-GP-2
将1mol罗丹明TMR,加入去水干燥的1,2-二氯乙烷120mL,搅拌下滴加三氯氧磷0.18mL,90℃下加热回流4h。反应液冷却至室温,去除溶剂,加入120mL干燥乙腈,再加入2-3mol叠氮化钠于室温反应8-12h,升温82℃加热40min,冷却至室温后加入2-3mol的N,N-二甲基乙二胺反应30min,加水淬灭,二氯甲烷萃取,经柱层析提纯得到RH-GP-2。HRMS:471.2590。
实施例3罗丹明101衍生物RH-GP-3
将1mol罗丹明101,加入去水干燥的1,2-二氯乙烷120mL,搅拌下滴加三氯氧磷0.18mL,90℃下加热回流4h。反应液冷却至室温,去除溶剂,加入120mL干燥乙腈,再加入2-3mol叠氮化钠于室温反应8-12h,升温82℃加热40min,冷却至室温后加入2-3mol的N,N-二甲基乙二胺反应30min,加水淬灭,二氯甲烷萃取,经柱层析提纯得到RH-GP-3。HRMS:575.3300。
实施例4光谱测试及成像实验
1.荧光光谱的测定。
配制浓度为2×10-5mol/L的含有60%乙腈的RH-GP-1探针水溶液,该探针溶液分别用氢氧化钠和盐酸调节pH,分别制备pH范围在2.5-13不同pH值的溶液,分别测试吸收和荧光光谱,分别用紫外分光光度计和荧光光度计记录,选取最大吸收和最大荧光强度对pH作图,如图1,2所示,图1,2中每个点分别代表不同pH值的最大吸收和最大荧光强度,结果表明,随着pH值的降低,荧光强度不断增强。探针在pH处于6.0~13范围内不敏感。
2.荧光显微成像。
向含有活细胞为葡萄球菌、芽孢杆菌、链球菌的培养皿中,分别加入浓度为2×10- 5M的RH-GP-1的溶液,与该种培养液混合均匀,染色5min后,用pH=7.4的磷酸盐缓冲溶液进行清洗三次,最后将该培养皿置于共聚焦显微镜下进行观察。如图4所示,染有RH-GP-1的芽孢杆菌均呈现出明显的红色荧光,实验结果表明,罗丹明类衍生物RH-GP-1具有高灵敏度、高选择性、操作简便、光控荧光敏感等优势,结合现有的荧光免疫检测方法的优缺点,可以表现出良好的可逆转换与光活性,能够对革兰氏阳性菌进行显微成像。
Claims (9)
1.一类罗丹明衍生物RH-GP-X在革兰氏阳性菌检测中的应用,其特征在于,所述的罗丹明类衍生物RH-GP-X具有如(Ⅰ)所示的结构通式:
其中,
R1=R2=R3=R4=H;
或R1=R4=H,R2=-CH2CH3,R3=-CH3;
或R1=R2=-CH3,R3=R4=H;
或R1=R2=-CH2CH3,R3=R4=H;
或R1和R4一起形成-(CH2)3-,R2和R3一起形成-(CH2)3-。
2.如权利要求1所述的应用,其特征在于,一类罗丹明类衍生物RH-GP-X的制备方法,包括如下步骤:将罗丹明类化合物,加入去水干燥的1,2-二氯乙烷,搅拌下滴加POCl3,加热回流,冷却至室温,去除溶剂,加入干燥乙腈,再加入叠氮化钠于室温下进行反应,升温至高温进行反应,冷却至室温后加入N,N-二甲基乙二胺进行反应,加水淬灭,萃取,经柱层析提纯得到RH-GP-X。
3.如权利要求2所述的应用,其特征在于,所述的罗丹明化合物为罗丹明B,四甲基罗丹明TMR,罗丹明101。
4.如权利要求3所述的应用,其特征在于,加热回流是在90℃加热回流4h。
5.如权利要求4所述的应用,其特征在于,室温下进行反应的时间为8-12h。
6.如权利要求5所述的应用,其特征在于,高温进行反应的温度为82℃,时间为40min。
7.如权利要求6所述的应用,其特征在于,加入N,N-二甲基乙二胺反应的时间为30min。
8.如权利要求7所述的应用,其特征在于,按摩尔比,罗丹明化合物:叠氮化钠:N,N-二甲基乙二胺=1:2-3:2-3。
9.如权利要求1所述的应用,其特征在于,所述的革兰氏阳性菌为芽孢杆菌。
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