CN114014772A - 一种氟胺酮半抗原化合物及其制备方法和用途 - Google Patents

一种氟胺酮半抗原化合物及其制备方法和用途 Download PDF

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CN114014772A
CN114014772A CN202111219230.3A CN202111219230A CN114014772A CN 114014772 A CN114014772 A CN 114014772A CN 202111219230 A CN202111219230 A CN 202111219230A CN 114014772 A CN114014772 A CN 114014772A
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fluoroamidone
hapten
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马芸
杨菲
余经中
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Shanghai Yishou Biotechnology Co ltd
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Abstract

本发明公开了一种氟胺酮半抗原化合物及其制备方法和用途,该氟胺酮化合物含有一个羧基,具有潜在的进一步合成抗原的应用,在司法鉴定等方面具有应用前景。

Description

一种氟胺酮半抗原化合物及其制备方法和用途
技术领域
本发明属于氟胺酮化合物标准物质领域,具体地,涉及一种氟胺酮半抗原化合物及其制备方法和用途。
背景技术
针对检材中微量、痕量物质的检测,基于抗体抗原反应的免疫分析法是现场检测中最常见和高效的检测手段。免疫分析法中关键步骤之一是半抗原的合成,需要在抗原分子上进行改造,引入一个可以连接手臂的基团。
对手臂的引入应尽可能保持抗原分子本身的化学性质和结构信息,同时引入步骤应当简洁高效,这一连有特殊基团的抗原分子,即为半抗原分子。
氟胺酮类化合物是成瘾性极强的精神活性物质及麻醉品之一,目前我国已经宣布整类列管该类化合物。由于氟胺酮分子结构简单,因此,在制备氟胺酮类半抗原时需要谨慎选择其手臂引入的基团位置。
因此,本发明提供一种氟胺酮半抗原化合物,用于检测氟胺酮的含量。
发明内容
针对现有技术中精神活性物质及麻醉品氟胺酮检测时标准物质不易制备的问题,本发明提供一种氟胺酮半抗原化合物,该化合物的结构式如下:
Figure BDA0003311943880000011
n为选自1-10的自然数。
本发明另一方面提供了上述氟胺酮半抗原化合物的制备方法,该制备方法包括以下步骤:
(1)去甲氟胺酮与6-溴己酸甲酯反应,生成甲基保护的中间体;
Figure BDA0003311943880000021
n为选自1-10的自然数;
(2)步骤(1)得到的中间体在碱性条件(例如LiOH的水溶液)下脱甲基保护,生成权利要求1所述的氟胺酮半抗原化合物:
Figure BDA0003311943880000022
所述氟胺酮半抗原化合物在检测氟胺酮含量中的用途。
本发明提供的含有末端羧基的氟胺酮化合物,可以方便地通过后续酰胺化和/或酯化等反应连接蛋白制备抗原,是氟胺酮快速检测的必备技术之一。
附图说明
图1是实施例1中氟胺酮半抗原化合物的高分辨质谱图;
图2是实施例1中氟胺酮半抗原化合物的1H-NMR谱图;
图3是实施例1中氟胺酮半抗原化合物的13C-NMR谱图;
图4是实施例1中氟胺酮半抗原化合物的19F-NMR谱图。
具体实施方式
实施例1
氟胺酮半抗原化合物的制备方法:
在-20℃下,去甲氟胺酮(207mg,1mmol)溶解于15mL无水二氯甲烷,加入碳酸钾(276mg,2mmol),之后逐滴加入6-溴己酸甲酯(209mg,1mmol)的无水二氯甲烷溶液(15mL),搅拌并缓慢升温至室温,在室温下保持12小时后加热至30℃并加热2小时。冷却后加入氯化铵溶液,过滤,旋转蒸发除去溶剂,加入150mL二氯甲烷溶解后,硅藻土过滤除去不溶物,用30mL乙醚-二氯甲烷1:1溶液洗涤硅藻土,分液,用二氯甲烷萃取3次,合并有机相,用无水硫酸镁干燥。过滤除去干燥剂,旋转蒸发除去溶剂。硅胶柱层析纯化(石油醚:乙酸乙酯=2:1)得到甲基保护的中间体。中间体不经过进一步的纯化,溶解于25mL甲醇,加入一水合氢氧化锂(419mg,10mmol),加热至50℃搅拌过夜。反应液用甲醇洗涤,硅藻土过滤除去不溶物,用30mL氨水-甲醇=1:1溶液洗涤硅藻土,用30%盐酸调节至pH=2,析出大量固体,过滤,固体晾干后用丙酮-石油醚重结晶,得氟胺酮半抗原化合物,白色固体(211mg,66%)。
1H NMR(600MHz,Methanol-d4)δ7.65(td,J=7.9,1.7Hz,1H),7.54-7.47(m,1H),7.36(td,J=7.7,1.3Hz,1H),7.20(ddd,J=11.8,8.3,1.2Hz,1H),3.06-2.98(m,1H),2.53-2.36(m,4H),2.17(t,J=7.3Hz,2H),2.02(dddt,J=11.4,5.4,3.8,1.9Hz,1H),1.87(tq,J=13.1,3.9Hz,2H),1.82-1.60(m,2H),1.56-1.47(m,4H),1.28(dtt,J=15.3,7.3,4.1Hz,2H).13C NMR(151MHz,cd3od)δ207.10,177.65,161.43,159.79,130.89,128.85,124.46,115.81,68.24,41.71,38.30,36.25,34.48,27.72,26.98,25.60,24.21,20.91.19F NMR(564MHz,cd3od)δ-110.73.(ESI/TOF)m/z:Calcd.for C18H25FNO3[M+H]+322.1818;Found:322.1804.谱图见附图1-4。
制备得到上述氟胺酮半抗原化合物后,可采用酰胺化和/或酯化等反应,进一步连接蛋白制备抗原。关于应用上述氟胺酮半抗原化合物及其后续产物,快速检测氟胺酮类化合物含量的方法,可参考本申请人其他专利技术,或者参照本领域常规技术。
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (4)

1.一种氟胺酮半抗原化合物,其特征在于,所述化合物具有如下结构式:
Figure FDA0003311943870000011
n为选自1-10的自然数。
2.权利要求1所述氟胺酮半抗原化合物的制备方法,其特征在于,包括以下步骤:
(1)去甲氟胺酮与6-溴己酸甲酯反应,生成甲基保护的中间体;
Figure FDA0003311943870000012
n为选自1-10的自然数;
(2)步骤(1)得到的中间体在碱性条件下脱甲基保护,生成权利要求1所述的氟胺酮半抗原化合物。
3.权利要求1所述氟胺酮半抗原化合物在检测氟胺酮含量中的用途。
4.根据权利要求3所述的用途,其特征在于,所述用途包括所述氟胺酮半抗原化合物经酰胺化和/或酯化反应连接蛋白制备抗原。
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1496974A (zh) * 2002-01-31 2004-05-19 ʵ 氯胺酮和其代谢物的半抗原、免疫原、抗体和偶联物
CN111836798A (zh) * 2018-01-10 2020-10-27 凯瑞康宁生物工程(武汉)有限公司 氯胺酮的前药、其组合物和用途
CN112174851A (zh) * 2020-11-09 2021-01-05 广州万孚生物技术股份有限公司 一种氟胺酮半抗原、氟胺酮抗原及其制备方法和应用

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1496974A (zh) * 2002-01-31 2004-05-19 ʵ 氯胺酮和其代谢物的半抗原、免疫原、抗体和偶联物
CN111836798A (zh) * 2018-01-10 2020-10-27 凯瑞康宁生物工程(武汉)有限公司 氯胺酮的前药、其组合物和用途
CN112174851A (zh) * 2020-11-09 2021-01-05 广州万孚生物技术股份有限公司 一种氟胺酮半抗原、氟胺酮抗原及其制备方法和应用

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