CN118477040B - 一种氟雷拉纳溶液的制备方法 - Google Patents
一种氟雷拉纳溶液的制备方法 Download PDFInfo
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Abstract
本发明涉及杀虫剂制备技术领域,且公开了一种氟雷拉纳溶液的制备方法,包括以下步骤:S1、移取有机溶剂至干净的玻璃三口瓶,然后依次称取助溶剂及稳定剂至玻璃三口瓶中,于50℃油浴加热磁力搅拌溶解;S2、称取氟雷拉纳原料药加入玻璃三口瓶,于50℃油浴加热磁力搅拌溶解;S3、移取有机溶剂至干净的玻璃单口瓶,然后依次称取抗氧化剂、香味矫味剂至玻璃单口瓶中,超声溶解。有机溶剂助溶剂辅助下较好溶解氟雷拉纳,与稳定剂、抗氧化剂以及酸度调节剂形成良好的溶液稳定性,增加产品保质期;合适的香味矫味剂能够促进提高动物的接受性,减少用药动物的用药排斥性;本发明成分简单安全,促进广泛使用。
Description
技术领域
本发明涉及杀虫剂制备技术领域,更具体的公开了一种氟雷拉纳溶液的制备方法。
背景技术
新型兽药氟雷拉纳(Fluralaner)是一种新型异噁唑啉类广谱性杀虫剂,通过干扰寄生虫的γ-氨基丁酸(GABA)门控氯离子通道导致其神经系统过度兴奋而死亡。氟雷拉纳对蜱螨目、蚤目、虱目等害虫均具有良好的杀虫活性,主要针对猫、狗等动物的体内外寄生虫及雏鸡、种鸡、蛋鸡的鸡皮刺螨和北方羽螨感染,是一类高效的杀虫剂。与传统的杀虫剂相比,异噁唑啉类杀虫剂对猫、狗以及鸡类动物副作用小,氟雷拉纳上市的品种包括氟雷拉纳咀嚼片、氟雷拉纳局部外用溶液等,市场前景巨大。
专利申请号:202111631718.7,发明名称:一种氟雷拉纳杀虫剂及其制备方法和应用,本发明提供的氟雷拉纳杀虫剂可以保证氟雷拉纳不被含有次氯酸的水所破坏,其组成为氟雷拉纳2.5g、吐温-8025g、二甲基乙酰胺25ml、大豆油10g,无水乙醇补齐至100ml,这个发明制剂含有植物油用水稀释时,容易乳化。
专利申请号:202311565322.6,发明名称:一种氟雷拉纳杀虫驱味喷雾剂及其制备方法和应用,本发明可实现氟雷拉纳做成驱味喷雾剂,其组成为氟雷拉纳1g,抗氧化剂0.03g,透皮剂7.5g和驱味剂7.5g,所述有机溶剂补齐到100ml。但存在喷雾不均匀且因动物毛发阻挡吸收率低,影响药效。
专利申请号:202110943959.9,发明名称:一种宠物用氟雷拉纳咀嚼片及其制备方法,本发明可实现氟雷拉纳做成咀嚼片,性质稳定,临床应用广泛,其组成为氟雷拉纳50%、鱼粉20%、蔗糖10%、玉米淀粉10%、十二烷基硫酸钠3%、硬脂酸镁0.3%、大豆油5%、聚乙二醇6.7%,但不能满足所有动物的适口性,成分复杂,成本较高,还可引起呕吐、食欲下降、肠胃胀气等不良反应。
而目前上市获批的氟雷拉纳产品剂型主要是咀嚼片。上市产品存在售价高,使用喂药不方便等系列问题。
发明内容
本发明主要是提供一种氟雷拉纳溶液的制备方法,能够解决目前现有的氟雷拉纳产品售价高,喂药不方便等的问题。
为解决上述技术问题,根据本发明的一个方面,更具体的说是一种氟雷拉纳溶液,包括以下组分:氟雷拉纳、助溶剂、酸度调节剂、稳定剂、抗氧化剂、香味矫味剂和有机溶剂;
助溶剂包括异辛醇、乌拉坦、3-叱啶甲酰胺中的一种或多种;
酸度调节剂包括枸橼酸、苹果酸、富马酸中的一种或多种;
稳定剂为β-环糊精;
抗氧化剂包括2,3,5,6-四羟基-2-己烯-4-内酯、2,6-二叔丁基对甲酚、半胱氨酸中的一种或多种;
香味矫味剂为2-乙基-3-羟基-4H-吡喃酮。
更进一步的,所述氟雷拉纳溶液的体积为1L计,其中:氟雷拉纳为5.0-30.0g/L,助溶剂为1.0-5.0g/L,酸度调节剂为0.5-2.0g/L,稳定剂为1.0-2.0g/L、抗氧化剂为2.0-5.0g/L,香味矫味剂为1.0-5.0g/L,有机溶剂补齐到1L。
更进一步的,所述氟雷拉纳溶液的体积为100ml计,其中:氟雷拉纳具体为1.0g,助溶剂具体为0.3g,酸度调节剂具体为0.1g,稳定剂具体为0.1g、抗氧化剂具体为0.3g,香味矫味剂具体为0.3g,有机溶剂补齐到100ml。
更进一步的,所述有机溶剂包括乙醇、十六醇、N,N-二甲基甲酰胺和三醋酸甘油酯中的至少一种。
根据本发明的另外一个方面,提供一种氟雷拉纳溶液的制备方法,包括以下步骤:
S1、移取有机溶剂至干净的玻璃三口瓶,然后依次称取助溶剂及稳定剂至玻璃三口瓶中,于50℃油浴加热磁力搅拌溶解;
S2、称取氟雷拉纳原料药加入玻璃三口瓶,于50℃油浴加热磁力搅拌溶解;
S3、移取有机溶剂至干净的玻璃单口瓶,然后依次称取抗氧化剂、香味矫味剂至玻璃单口瓶中,超声溶解;
S4、将步骤S3所得溶液滴加入步骤S2所得溶液中,快速搅拌混合均匀;
S5、将酸度调节剂加入到玻璃三口瓶,于50℃油浴加热磁力搅拌溶解,调节体系酸性;
S6、冷却至室温,再移取有机溶剂定容,超声溶解,即得所述氟雷拉纳溶液。
本发明一种氟雷拉纳溶液的制备方法的有益效果为:有机溶剂助溶剂辅助下较好溶解氟雷拉纳,与稳定剂、抗氧化剂以及酸度调节剂形成良好的溶液稳定性,增加产品保质期;合适的香味矫味剂能够促进提高动物的接受性,减少用药动物的用药排斥性;本发明成分简单安全,促进广泛使用。
附图说明
下面结合附图和具体实施方法对本发明做进一步详细的说明。
图1为实施例1长期实验液相对照谱图;
图2为实施例2长期实验液相对照谱图;
图3为实施例3长期实验液相对照谱图;
图4为实施例4长期实验液相对照谱图;
图5为实施例5长期实验液相对照谱图;
图6为实施例6长期实验液相对照谱图;
图7为实施例7长期实验液相对照谱图;
图8为实施例8长期实验液相对照谱图。
图9为实施例1高温光照实验液相对照谱图;
图10为实施例2高温光照实验液相对照谱图;
图11为实施例3高温光照实验液相对照谱图;
图12为实施例4高温光照实验液相对照谱图;
图13为实施例5高温光照实验液相对照谱图;
图14为实施例6高温光照实验液相对照谱图;
图15为实施例7高温光照实验液相对照谱图;
图16为实施例8高温光照实验液相对照谱图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。
氟雷拉纳溶液包括氟雷拉纳、助溶剂、酸度调节剂、稳定剂、抗氧化剂、香味矫味剂和有机溶剂。助溶剂包括异辛醇、乌拉坦、3-叱啶甲酰胺中的一种或多种。酸度调节剂包括枸橼酸、苹果酸、富马酸中的一种或多种。稳定剂为β-环糊精。抗氧化剂包括2,3,5,6-四羟基-2-己烯-4-内酯、2,6-二叔丁基对甲酚、半胱氨酸中的一种或多种。香味矫味剂为2-乙基-3-羟基-4H-吡喃酮。
实施例1
一种氟雷拉纳溶液,组成为氟雷拉纳1.0g、乌拉坦0.3g、枸橼酸0.1g、β-环糊精0.1g、2,3,5,6-四羟基-2-己烯-4-内酯0.3g、2-乙基-3-羟基-4H-吡喃酮0.1g,乙醇∶乙酸正丁酯=2∶1(V/V)补齐至100ml。
(1)移取10ml的乙酸正丁酯至干净的玻璃三口瓶,依次称取乌拉坦0.3g、β-环糊精0.1g加入玻璃三口瓶,于50℃油浴加热磁力搅拌溶解;
(2)称取氟雷拉纳原料药1.0g加入(1),于50℃油浴加热磁力搅拌溶解;
(3)移取20ml乙醇至干净的玻璃单口瓶,依次称取2,3,5,6-四羟基-2-己烯-4-内酯0.3g、2-乙基-3-羟基-4H-吡喃酮0.1g,超声溶解;
(4)将(3)中所得溶液滴加加入(2)中所得溶液,50℃油浴加热下快速搅拌混合均匀;
(5)称取枸橼酸0.1g加入到(4)中所得溶液,于50℃油浴加热磁力搅拌溶解,调节体系酸性;
(6)冷却至室温,再用乙醇∶乙酸正丁酯=2∶1(V/V)体系定容至100ml,超声溶解,即得所述氟雷拉纳溶液。
实施例2
一种氟雷拉纳溶液,组成为氟雷拉纳1.0g、乌拉坦0.3g、枸橼酸0.1g、β-环糊精0.1g、2,3,5,6-四羟基-2-己烯-4-内酯0.3g、2-乙基-3-羟基-4H-吡喃酮0.2g,乙醇∶乙酸正丁酯=2∶1(V/V)补齐至100ml。
(1)移取10ml的乙酸正丁酯至干净的玻璃三口瓶,依次称取乌拉坦0.3g、β-环糊精0.1g加入玻璃三口瓶,于50℃油浴加热磁力搅拌溶解;
(2)称取氟雷拉纳原料药1.0g加入(1),于50℃油浴加热磁力搅拌溶解;
(3)移取20ml乙醇至干净的玻璃单口瓶,依次称取2,3,5,6-四羟基-2-己烯-4-内酯0.3g、2-乙基-3-羟基-4H-吡喃酮0.2g,超声溶解;
(4)将(3)中所得溶液滴加加入(2)中所得溶液,50℃油浴加热下快速搅拌混合均匀;
(5)称取枸橼酸0.1g加入到(4)中所得溶液,于50℃油浴加热磁力搅拌溶解,调节体系酸性;
(6)冷却至室温,再用乙醇∶乙酸正丁酯=2∶1(V/V)体系定容至100ml,超声溶解,即得所述氟雷拉纳溶液。
实施例3
一种氟雷拉纳溶液,组成为氟雷拉纳1.0g、乌拉坦0.3g、枸橼酸0.1g、β-环糊精0.1g、2,3,5,6-四羟基-2-己烯-4-内酯0.3g、2-乙基-3-羟基-4H-吡喃酮0.3g,乙醇∶乙酸正丁酯=2∶1(V/V)补齐至100ml。
(1)移取10ml的乙酸正丁酯至干净的玻璃三口瓶,依次称取乌拉坦0.3g、β-环糊精0.1g加入玻璃三口瓶,于50℃油浴加热磁力搅拌溶解;
(2)称取氟雷拉纳原料药1.0g加入(1),于50℃油浴加热磁力搅拌溶解;
(3)移取20ml乙醇至干净的玻璃单口瓶,依次称取2,3,5,6-四羟基-2-己烯-4-内酯0.3g、2-乙基-3-羟基-4H-吡喃酮0.3g,超声溶解;
(4)将(3)中所得溶液滴加加入(2)中所得溶液,50℃油浴加热下快速搅拌混合均匀;
(5)称取枸橼酸0.1g加入到(4)中所得溶液,于50℃油浴加热磁力搅拌溶解,调节体系酸性;
(6)冷却至室温,再用乙醇∶乙酸正丁酯=2∶1(V/V)体系定容至100ml,超声溶解,即得所述氟雷拉纳溶液。
实施例4
一种氟雷拉纳溶液,组成为氟雷拉纳1.0g、乌拉坦0.3g、枸橼酸0.1g、β-环糊精0.1g、2,3,5,6-四羟基-2-己烯-4-内酯0.3g、2-乙基-3-羟基-4H-吡喃酮0.4g,乙醇∶乙酸正丁酯=2∶1(V/V)补齐至100ml。
(1)移取10ml的乙酸正丁酯至干净的玻璃三口瓶,依次称取乌拉坦0.3g、β-环糊精0.1g加入玻璃三口瓶,于50℃油浴加热磁力搅拌溶解;
(2)称取氟雷拉纳原料药1.0g加入(1),于50℃油浴加热磁力搅拌溶解;
(3)移取20ml乙醇至干净的玻璃单口瓶,依次称取2,3,5,6-四羟基-2-己烯-4-内酯0.3g、2-乙基-3-羟基-4H-吡喃酮0.4g,超声溶解;
(4)将(3)中所得溶液滴加加入(2)中所得溶液,50℃油浴加热下快速搅拌混合均匀;
(5)称取枸橼酸0.1g加入到(4)中所得溶液,于50℃油浴加热磁力搅拌溶解,调节体系酸性;
(6)冷却至室温,再用乙醇∶乙酸正丁酯=2∶1(V/V)体系定容至100ml,超声溶解,即得所述氟雷拉纳溶液。
实施例5
一种氟雷拉纳溶液,组成为氟雷拉纳1.0g、乌拉坦0.3g、枸橼酸0.1g、β-环糊精0.1g、2,3,5,6-四羟基-2-己烯-4-内酯0.3g、2-乙基-3-羟基-4H-吡喃酮0.5g,乙醇∶乙酸正丁酯=2∶1(V/V)补齐至100ml。
(1)移取10ml的乙酸正丁酯至干净的玻璃三口瓶,依次称取乌拉坦0.3g、β-环糊精0.1g加入玻璃三口瓶,于50℃油浴加热磁力搅拌溶解;
(2)称取氟雷拉纳原料药1.0g加入(1),于50℃油浴加热磁力搅拌溶解;
(3)移取20ml乙醇至干净的玻璃单口瓶,依次称取2,3,5,6-四羟基-2-己烯-4-内酯0.3g、2-乙基-3-羟基-4H-吡喃酮0.5g,超声溶解;
(4)将(3)中所得溶液滴加加入(2)中所得溶液,50℃油浴加热下快速搅拌混合均匀;
(5)称取枸橼酸0.1g加入到(4)中所得溶液,于50℃油浴加热磁力搅拌溶解,调节体系酸性;
(6)冷却至室温,再用乙醇∶乙酸正丁酯=2∶1(V/V)体系定容至100ml,超声溶解,即得所述氟雷拉纳溶液。
实施例6
一种氟雷拉纳溶液,组成为氟雷拉纳0.5g、乌拉坦0.1g、枸橼酸0.05g、β-环糊精0.1g、2,3,5,6-四羟基-2-己烯-4-内酯0.2g、2-乙基-3-羟基-4H-吡喃酮0.1g,乙醇∶乙酸正丁酯=2∶1(V/V)补齐至100ml。
(1)移取10ml的乙酸正丁酯至干净的玻璃三口瓶,依次称取乌拉坦0.1g、β-环糊精0.1g加入玻璃三口瓶,于50℃油浴加热磁力搅拌溶解;
(2)称取氟雷拉纳原料药0.5g加入(1),于50℃油浴加热磁力搅拌溶解;
(3)移取20ml乙醇至干净的玻璃单口瓶,依次称取2,3,5,6-四羟基-2-己烯-4-内酯0.2g、2-乙基-3-羟基-4H-吡喃酮0.1g,超声溶解;
(4)将(3)中所得溶液滴加加入(2)中所得溶液,50℃油浴加热下快速搅拌混合均匀;
(5)称取枸橼酸0.05g加入到(4)中所得溶液,于50℃油浴加热磁力搅拌溶解,调节体系酸性;
(6)冷却至室温,再用乙醇∶乙酸正丁酯=2∶1(V/V)体系定容至100ml,超声溶解,即得所述氟雷拉纳溶液。
实施例7
一种氟雷拉纳溶液,组成为氟雷拉纳2.0g、乌拉坦0.25g、枸橼酸0.15g、β-环糊精0.15g、2,3,5,6-四羟基-2-己烯-4-内酯0.25g、2-乙基-3-羟基-4H-吡喃酮0.25g,乙醇∶乙酸正丁酯=2∶1(V/V)补齐至100ml。
(1)移取10ml的乙酸正丁酯至干净的玻璃三口瓶,依次称取乌拉坦0.25g、β-环糊精0.15g加入玻璃三口瓶,于50℃油浴加热磁力搅拌溶解;
(2)称取氟雷拉纳原料药2.0g加入(1),于50℃油浴加热磁力搅拌溶解;
(3)移取20ml乙醇至干净的玻璃单口瓶,依次称取2,3,5,6-四羟基-2-己烯-4-内酯0.25g、2-乙基-3-羟基-4H-吡喃酮0.25g,超声溶解;
(4)将(3)中所得溶液滴加加入(2)中所得溶液,50℃油浴加热下快速搅拌混合均匀;
(5)称取枸橼酸0.15g加入到(4)中所得溶液,于50℃油浴加热磁力搅拌溶解,调节体系酸性;
(6)冷却至室温,再用乙醇∶乙酸正丁酯=2∶1(V/V)体系定容至100ml,超声溶解,即得所述氟雷拉纳溶液。
实施例8
一种氟雷拉纳溶液,组成为氟雷拉纳3.0g、乌拉坦0.3g、枸橼酸0.2g、β-环糊精0.2g、2,3,5,6-四羟基-2-己烯-4-内酯0.5g、2-乙基-3-羟基-4H-吡喃酮0.5g,乙醇∶乙酸正丁酯=2∶1(V/V)补齐至100ml。
(1)移取10ml的乙酸正丁酯至干净的玻璃三口瓶,依次称取乌拉坦0.5g、β-环糊精0.2g加入玻璃三口瓶,于50℃油浴加热磁力搅拌溶解;
(2)称取氟雷拉纳原料药3.0g加入(1),于50℃油浴加热磁力搅拌溶解;
(3)移取20ml乙醇至干净的玻璃单口瓶,依次称取2,3,5,6-四羟基-2-己烯-4-内酯0.5g、2-乙基-3-羟基-4H-吡喃酮0.5g,超声溶解;
(4)将(3)中所得溶液滴加加入(2)中所得溶液,50℃油浴加热下快速搅拌混合均匀;
(5)称取枸橼酸0.2g加入到(4)中所得溶液,于50℃油浴加热磁力搅拌溶解,调节体系酸性;
(6)冷却至室温,再用乙醇∶乙酸正丁酯=2∶1(V/V)体系定容至100ml,超声溶解,即得所述氟雷拉纳溶液。
稳定性试验
1、长期试验
将本发明实施例1-8制备的溶液,放置在常温条件12个月,取样测定主含量及杂质,观察性状。
2、高温光照试验
将本发明实施例1-8制备的溶液,在50℃紫外光照射条件下放置30天,分别于当天与30天取样,检测相关指标。
3、药物接受性评价
在某蛋鸡养殖基地,选取自然感染病例32只(每实施例4只),用于药物接受性评价。本发明药物接受性评价以对饲料中添加氟雷拉纳溶液以及不添加氟雷拉纳溶液为对照。依次检查每只蛋鸡对饲料进食的差异,观察有无不食以及厌食现象,按如下原则判断各组的药物接受性:
接受性好:将药加入鸡饲料后,试验蛋鸡进食量不受影响,或者进食量减少低于正常进食量的20%。
接受性差:将药加入鸡饲料后,试验蛋鸡进食量明显受到影响,或者进食量减少高于正常进食量的20%。
4、药效评价
在某蛋鸡养殖基地,选取自然感染病例48只(每实施例6只),用于药效评价。本发明药效评价以皮肤中体外寄生螨虫及虫卵数量变化指标和临床症状为判断标准。依次检查每只蛋鸡的体外寄生螨虫及虫卵数,计算寄生螨虫及虫卵减少率,按如下原则判断各组的药效:
有效:用药结束后,皮肤的体表寄生螨虫及虫卵数量平均减少率>90%,患部无炎症、无红疹,且试验动物无羽毛损伤现象。
无效:用药结束后,皮肤的体表寄生螨虫及虫卵数量平均减少率率<90%,患部仍有炎症,红疹等,且试验动物有羽毛损伤现象。
通过上述实施1-8可知,通过上述实施例,在实施例3的效果最为明显,在治疗蛋鸡体表的鸡皮刺螨和北方羽螨感染,辅助治疗因螨虫引起的过敏性皮炎的应用中的效果最为明显,且产品稳定性更强,杂质最少。
当然,上述说明并非对本发明的限制,本发明也不仅限于上述举例,本技术领域的普通技术人员在本发明的实质范围内所做出的变化、改型、添加或替换,也属于本发明的保护范围。
Claims (7)
1.一种氟雷拉纳溶液,其特征在于,包括以下组分:氟雷拉纳、助溶剂、酸度调节剂、稳定剂、抗氧化剂、香味矫味剂和有机溶剂;
助溶剂为乌拉坦;
酸度调节剂为枸橼酸;
稳定剂为β-环糊精;
抗氧化剂为2,3,5,6-四羟基-2-己烯-4-内酯;
香味矫味剂为2-乙基-3-羟基-4H-吡喃酮。
2.根据权利要求1所述的一种氟雷拉纳溶液,其特征在于:所述氟雷拉纳溶液的体积为1L计,其中:氟雷拉纳为5.0-30.0g/L,助溶剂为1.0-5.0g/L,酸度调节剂为0.5-2.0g/L,稳定剂为1.0-2.0g/L、抗氧化剂为2.0-5.0g/L,香味矫味剂为1.0-5.0g/L,有机溶剂补齐到1L。
3.根据权利要求1所述的一种氟雷拉纳溶液,其特征在于:所述有机溶剂包括乙醇、十六醇、N,N-二甲基甲酰胺和三醋酸甘油酯中的至少一种。
4.根据权利要求2所述的一种氟雷拉纳溶液,其特征在于:所述氟雷拉纳溶液的体积为100ml计,其中:氟雷拉纳具体为1.0g,助溶剂具体为0.3g,酸度调节剂具体为0.1g,稳定剂具体为0.1g、抗氧化剂具体为0.3g,香味矫味剂具体为0.3g,有机溶剂补齐到100ml。
5.根据权利要求1-4任意一项所述的一种氟雷拉纳溶液的制备方法,其特征在于,包括以下步骤:
S1、移取有机溶剂至干净的玻璃三口瓶,然后依次称取助溶剂及稳定剂至玻璃三口瓶中,进行加热磁力搅拌溶解;
S2、称取氟雷拉纳原料药加入玻璃三口瓶,进行加热磁力搅拌溶解;
S3、移取有机溶剂至干净的玻璃单口瓶,然后依次称取抗氧化剂、香味矫味剂至玻璃单口瓶中,超声溶解;
S4、将步骤S3所得溶液滴加入步骤S2所得溶液中,快速搅拌混合均匀;
S5、将酸度调节剂加入到玻璃三口瓶,进行加热磁力搅拌溶解,调节体系酸性;
S6、冷却至室温,再移取有机溶剂定容,超声溶解,即得所述氟雷拉纳溶液。
6.根据权利要求5所述的一种氟雷拉纳溶液的制备方法,其特征在于:所述步骤S1、S2和S3中,在进行加热磁力搅拌的时候,均于50℃油浴中进行。
7.根据权利要求1-4任意一项所述的一种氟雷拉纳溶液,其特征在于:该溶液能够应用于治疗和控制雏鸡、种鸡和蛋鸡的鸡皮刺螨和北方羽螨感染。
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