CN101574373B - 蟾酥醇质体及其制备方法 - Google Patents

蟾酥醇质体及其制备方法 Download PDF

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CN101574373B
CN101574373B CN2008101061844A CN200810106184A CN101574373B CN 101574373 B CN101574373 B CN 101574373B CN 2008101061844 A CN2008101061844 A CN 2008101061844A CN 200810106184 A CN200810106184 A CN 200810106184A CN 101574373 B CN101574373 B CN 101574373B
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张卫华
胡克菲
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Beijing Yingkerui Pharmaceutical Safety And Effectiveness Research Co ltd
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Beijing Increase Pharmaceutical Technology Co Ltd
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Abstract

本发明涉及蟾酥醇质体及其制备方法。本发明采用新型制剂技术,制备含高浓度乙醇可达20-50%的磷脂囊泡载体,稳定性好,易产业化的新型制剂。

Description

蟾酥醇质体及其制备方法
技术领域
本发明涉及蟾酥醇质体及其制备方法。
背景技术
脂质体是由磷脂双分子层组成的单室或多室囊泡,是研究得最多靶向药物载体,大多用于抗肿瘤药及抗利什曼病的锑制剂,可显著降低药物毒性而保持更长时间的活性。但脂质体的性能存在缺点:①由于其化学不稳定性,制备及贮藏困难,药物包裹率不高且易发生渗漏而失去靶向性。②所用原料磷脂难以纯化,且易氧化变质而降低膜流动性导致被包裹药物的渗漏。③纯化的磷脂价高。因此,人们广泛地研究了化学组成确定、性质较稳定、能构成脂质体样囊泡的载体。
含有高浓度乙醇可达20-50%的磷脂载体是近年来研究的热点。磷脂载体中含有高浓度乙醇,具有柔软、延展性,比传统脂质体稳定,不易泄漏。
蟾酥脂溶性成分制成脂质体的已有报道,但不够稳定。
发明内容
本发明目的在于提供蟾酥醇质体。
本发明另一目的在于提供蟾酥醇质体制备方法。
本发明通过以下技术方案予以实施。
本发明蟾酥醇质体,包括下列重量份组分:蟾酥提取物1-10磷脂4-120胆固醇0-60磷酸二鲸蜡脂0-60磷脂酰胺0-60乙醇5-100。
本发明蟾酥醇质体中磷脂可为氢化大豆卵磷脂、大豆卵磷脂、蛋黄卵磷脂或合成磷脂中的一种或一种以上。
本发明蟾酥提取物制备方法可以为:蟾酥加乙醇提取,得乙醇提取液,根据需要乙醇提取液可减压浓缩,浓缩液可采用乙醚或乙酸乙酯萃取,得脂溶性提取物,也可对该脂溶性提取物采用大孔树脂、离子交换树脂、硅胶柱一种或一种以上联用进行精制进行柱层析,得总内酯提取物。
本发明蟾酥提取物制备方法也可以为:蟾酥加乙醇提取,得乙醇提取液,乙醇提取物可采用大孔树脂、离子交换树脂、硅胶柱一种或一种以上联用进行精制。
本发明蟾酥醇质体制备方法,可以为:磷脂、蟾酥提取物、胆固醇溶于适量乙醇溶解,溶液备用;另取磷酸盐缓冲液或纯化水,在30-60℃恒温并搅拌下,匀速滴加上述乙醇溶液,乙醇浓度不超过50%,加完后继续搅拌,过滤,即得。
本发明蟾酥醇质体制备方法也可以为:取磷脂、胆固醇溶于适量氯仿或乙醚中,在旋转蒸发仪上,30-60℃恒温水浴真空蒸发至干燥脂质薄膜;蟾酥提取物溶于不超过50%的水醇混和液中,然后与脂质膜悬转水合,超声处理,即得。
本发明蟾酥醇质体制备方法中所用磷酸盐缓冲液,也可为硫酸铵缓冲液、三羟甲基氨基缓冲液或其它缓冲液。
本发明蟾酥醇质,含有高浓度乙醇,稳定性好,易工业化生产,产品较脂质体稳定,具有较大推广价值。
具体实施方式
本发明通过实施例作进一步说明,但不局限于本发明。
实施例1
取氢化大豆卵磷脂20mg、蟾酥提取物1mg溶于20ml乙醇溶解,溶液备用;另取磷酸盐缓冲液(pH7.0)20ml,在40℃恒温并搅拌下,匀速滴加上述乙醇溶液,加完后继续搅拌30min,0.22μm微孔膜过滤,即得。
实施例2
取氢化大豆卵磷脂120mg、胆固醇60mg、磷酸二鲸蜡脂60mg、磷脂酰胺60mg、蟾酥提取物10mg溶于50ml乙醇溶解,溶液备用;另取磷酸盐缓冲液(pH7.0)80ml,在30℃恒温并搅拌下,匀速滴加上述乙醇溶液,加完后继续搅拌,0.22μm微孔膜过滤,即得。
实施例3
取大豆卵磷脂60mg、蟾酥提取物4mg溶于20ml乙醚,在旋转蒸发仪上,35℃真空蒸发至干燥薄膜,然后加入磷酸盐缓冲液(pH7.0)30ml,加入乙醇使乙醇浓度在35%,40℃恒温水合30min,超声处理10min,0.22μm微孔膜过滤,即得。
实施例4
取二硬脂酰磷脂酰乙醇胺50mg、胆固醇30mg、蟾酥提取物5mg溶于40ml乙醇,在45℃恒温并搅拌下,往90ml纯化水中匀速滴加上述乙醇溶液,加完后继续搅拌30min,0.22μm微孔膜过滤,即得。
实施例5
取二棕榈酰磷脂酰胆碱40mg、蟾酥提取物2mg溶于20ml乙醚,在旋转蒸发仪上,35℃真空蒸发至干燥薄膜,然后加入磷酸盐缓冲液(pH7.0)40ml,加入乙醇使乙醇浓度在25%,35℃水合20min,超声处理5min,,0.22μm微孔膜过滤,即得。
实施例6
取二棕榈酰磷脂酰胆碱110mg、胆固醇30mg、蟾酥提取物8mg溶于15ml乙醇,在旋转蒸发仪上,35℃真空蒸发至干燥薄膜,然后加入磷酸盐缓冲液(pH7.0)20ml,加入乙醇使乙醇浓度在45%,43℃水合30min,超声处理10min,,0.22μm微孔膜过滤,即得。

Claims (5)

1.蟾酥醇质体,其特征在于,它是由下列重量份的组分制成:
蟾酥提取物1-10、磷脂20-120、胆固醇0-60、磷酸二鲸蜡酯0-60、磷脂酰胺0-60、乙醇5-100;
其中,蟾酥提取物的制备方法为:蟾酥加乙醇提取,得乙醇提取液,乙醇提取液减压浓缩,浓缩液采用乙醚或乙酸乙酯萃取,得脂溶性提取物,或者进一步对该脂溶性提取物采用大孔树脂、离子交换树脂、硅胶柱中的一种以上联用进行精制进行柱层析,得总内酯提取物。
2.如权利要求1所述的蟾酥醇质体,其特征在于,磷脂是指氢化大豆卵磷脂、大豆卵磷脂、蛋黄卵磷脂或合成磷脂中的一种以上。
3.蟾酥醇质体的制备方法,其特征在于:
按重量份取磷脂20-120份、蟾酥提取物1-10份、胆固醇0-60份溶于5-100份乙醇溶解,溶液备用;另取磷酸盐缓冲液或纯化水,在30-60℃恒温并搅拌下,匀速滴加上述乙醇溶液,乙醇浓度不超过50%,加完后继续搅拌,过滤,即得;其中,胆固醇重量份不为0;
蟾酥提取物的制备方法为:蟾酥加乙醇提取,得乙醇提取液,乙醇提取液减压浓缩,浓缩液采用乙醚或乙酸乙酯萃取,得脂溶性提取物,或者进一步对该脂溶性提取物采用大孔树脂、离子交换树脂、硅胶柱中的一种以上联用进行精制进行柱层析,得总内酯提取物。
4.蟾酥醇质体的制备方法,其特征在于:
按重量份取磷脂20-120份、胆固醇0-60份溶于适量氯仿或乙醚中,在旋转蒸发仪上,30-60℃恒温水浴,真空蒸发至成干燥脂质薄膜;按重量份取蟾酥提取物1-10份溶于乙醇重量份为5-100份不超过50%的水醇混合液中,然后与脂质膜旋转水合,超声处理,即得;其中,胆固醇重量份不为0;
蟾酥提取物的制备方法为:蟾酥加乙醇提取,得乙醇提取液,乙醇提取液减压浓缩,浓缩液采用乙醚或乙酸乙酯萃取,得脂溶性提取物,或者进一步对该脂溶性提取物采用大孔树脂、离子交换树脂、硅胶柱中的一种以上联用进行精制进行柱层析,得总内酯提取物。
5.一种蟾酥醇质体的制备方法,其特征在于:
取氢化大豆卵磷脂120mg、胆固醇60mg、磷酸二鲸蜡酯60mg、磷脂酰胺60mg、蟾酥提取物10mg溶于50ml乙醇溶解,溶液备用;另取pH7.0磷酸盐缓冲液80ml,在30℃恒温并搅拌下,匀速滴加上述乙醇溶液,加完后继续搅拌,0.22μm微孔膜过滤,即得;
蟾酥提取物的制备方法为:蟾酥加乙醇提取,得乙醇提取液,乙醇提取液减压浓缩,浓缩液采用乙醚或乙酸乙酯萃取,得脂溶性提取物,或者进一步对该脂溶性提取物采用大孔树脂、离子交换树脂、硅胶柱中的一种以上联用进行精制进行柱层析,得总内酯提取物。
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CN102133183B (zh) * 2011-03-04 2012-02-29 湘潭大学 一种阿昔洛韦醇质体及其制备方法
CN102406605A (zh) * 2011-04-28 2012-04-11 辽宁省计划生育科学研究院 雄性激素类药物的醇质体制剂及其制备方法
CN104337844A (zh) * 2013-08-02 2015-02-11 北京因科瑞斯医药科技有限公司 蟾酥提取物及其制剂在制备治疗黑色素瘤药物中的应用
CN116196279B (zh) * 2023-04-27 2023-07-25 上海中医药大学 一种蟾酥提取物无胆固醇脂质体及其制备方法和应用

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