CN109456336A - 奥氮平的精制方法 - Google Patents
奥氮平的精制方法 Download PDFInfo
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- CN109456336A CN109456336A CN201710795036.7A CN201710795036A CN109456336A CN 109456336 A CN109456336 A CN 109456336A CN 201710795036 A CN201710795036 A CN 201710795036A CN 109456336 A CN109456336 A CN 109456336A
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- KVWDHTXUZHCGIO-UHFFFAOYSA-N olanzapine Chemical compound C1CN(C)CCN1C1=NC2=CC=CC=C2NC2=C1C=C(C)S2 KVWDHTXUZHCGIO-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 229960005017 olanzapine Drugs 0.000 title claims abstract description 25
- 238000007670 refining Methods 0.000 title claims abstract description 20
- 239000012535 impurity Substances 0.000 claims abstract description 11
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims abstract description 9
- LDCMTXMRTVOLKA-UHFFFAOYSA-N 1,3-dihydro-1,5-benzodiazepin-2-one Chemical compound N1C(=O)CC=NC2=CC=CC=C21 LDCMTXMRTVOLKA-UHFFFAOYSA-N 0.000 claims abstract description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 30
- 238000002425 crystallisation Methods 0.000 claims description 16
- 230000008025 crystallization Effects 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 9
- 239000012065 filter cake Substances 0.000 claims description 9
- 239000012043 crude product Substances 0.000 claims description 8
- 239000000047 product Substances 0.000 claims description 8
- 238000010992 reflux Methods 0.000 claims description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- 239000000706 filtrate Substances 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000001953 recrystallisation Methods 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 238000007605 air drying Methods 0.000 claims description 3
- 125000005605 benzo group Chemical group 0.000 claims description 3
- 235000019441 ethanol Nutrition 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims 2
- AAMQZYTYJYCEMD-UHFFFAOYSA-N 3,5-dihydrodiazepin-4-one Chemical compound O=C1CC=CN=NC1 AAMQZYTYJYCEMD-UHFFFAOYSA-N 0.000 claims 1
- -1 dry Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 229940079593 drug Drugs 0.000 abstract description 4
- 239000003814 drug Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 230000000561 anti-psychotic effect Effects 0.000 abstract description 2
- 229940039925 zyprexa Drugs 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- VYFYYTLLBUKUHU-UHFFFAOYSA-N dopamine Chemical compound NCCC1=CC=C(O)C(O)=C1 VYFYYTLLBUKUHU-UHFFFAOYSA-N 0.000 description 4
- 238000004128 high performance liquid chromatography Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- LYGPWENHQQXDHX-UHFFFAOYSA-N 1,6-dihydro-1,4-diazepin-7-one Chemical compound O=C1CC=NC=CN1 LYGPWENHQQXDHX-UHFFFAOYSA-N 0.000 description 3
- NTYJJOPFIAHURM-UHFFFAOYSA-N Histamine Chemical compound NCCC1=CN=CN1 NTYJJOPFIAHURM-UHFFFAOYSA-N 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 229960003638 dopamine Drugs 0.000 description 2
- 108020003175 receptors Proteins 0.000 description 2
- 102000005962 receptors Human genes 0.000 description 2
- 208000024891 symptom Diseases 0.000 description 2
- LRANPJDWHYRCER-UHFFFAOYSA-N 1,2-diazepine Chemical compound N1C=CC=CC=N1 LRANPJDWHYRCER-UHFFFAOYSA-N 0.000 description 1
- 102000056834 5-HT2 Serotonin Receptors Human genes 0.000 description 1
- 108091005479 5-HT2 receptors Proteins 0.000 description 1
- 101150049660 DRD2 gene Proteins 0.000 description 1
- 206010012289 Dementia Diseases 0.000 description 1
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Divinylene sulfide Natural products C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 1
- 206010014557 Emotional poverty Diseases 0.000 description 1
- 206010020400 Hostility Diseases 0.000 description 1
- 206010026749 Mania Diseases 0.000 description 1
- 206010036467 Poverty of speech Diseases 0.000 description 1
- 206010041243 Social avoidant behaviour Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001713 cholinergic effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003291 dopaminomimetic effect Effects 0.000 description 1
- 230000008451 emotion Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000010224 hepatic metabolism Effects 0.000 description 1
- 229960001340 histamine Drugs 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 201000000980 schizophrenia Diseases 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D495/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms
- C07D495/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
- C07D495/04—Ortho-condensed systems
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
奥氮平又称奥兰扎平、奥兰氮平,是一种常见的抗精神病药。申报奥氮平原料药时,需要对奥氮平的有关物质含量进行限定。本申请意在提供一种奥氮平的精制方法,使得终产品中杂质2‑甲基‑10H‑噻吩‑[2,3‑B]苯并[1,5]二氮杂卓‑4[5H]‑酮的含量低于限度要求,且该方法适用于药用级别的奥氮平的工业化生产。
Description
技术领域
本申请属于药物化学领域。
背景技术
奥氮平又称奥兰扎平、奥兰氮平,是一种常见的抗精神病药,临床上用于控制精神分裂症、双极性躁狂症和痴呆症患者的激越症状,能显著改善精神分裂症的阴性(例如:情感淡漠、情感和社会退缩、言语贫乏)、阳性症状(例如:妄想、幻觉、思维障碍、敌意和猜疑),亦可缓解精神分裂症及相关疾病常见的继发性情感症状。其口服吸收良好,5至8小时达到血浆峰值浓度,并且不受进食影响,通过结合和氧化反应在肝脏代谢;主要循环代谢产物是10-N-葡萄糖苷酸。 动物试验表明,奥氮平对5-HT、多巴胺D、α-肾上腺素、组胺H等多种受体有亲和力,体外和体内5-HT2受体亲和力大于其与多巴胺D2受体的亲和力。动物行为研究表明,奥氮平具有5-HT、多巴胺和胆碱能拮抗作用,与其受体结合情况相符。
发明内容
根据研究发现,现存的大多数的奥氮平纯化工艺可使终产品达到工业级别,即使能达到药用级别,但有关物质的含量往往也接近国家规定药用限度,有超过的可能性,为了保证广大患者用药的安全性,本申请对奥氮平的纯化晶型了研究,本研究适用于市面上可购得的非药用级别的奥氮平的进一步提纯,本申请的方法使有关物质低于限度要求,为用药安全性提供了保障。
本申请的目的是提供一种高纯度,高收率,反应步骤简洁,对环境友好,适用于工业化的奥氮平精制方法。
为达到以上目的,本申请的奥氮平的精制工艺为:将奥氮平粗品溶于热的有机溶剂,加入活性炭脱色,降温,析晶,过滤,干燥,得到高纯度奥氮平,其中杂质2-甲基-10H-噻吩-[2,3-B]苯并[1,5]二氮杂卓-4[5H]-酮含量不高0.05%,产品纯度不低于99.90%。
本申请的精制方法重结晶溶剂可选甲醇、乙醇、乙腈、乙酸乙酯,用量为粗品的7-8倍;重结晶溶剂选择乙腈。
本申请的精制方法加入活性炭脱色,脱色回流时间为0.5-1h,优先选择脱色回流1h。
本申请的精制方法中干燥有置于阴凉处干燥、鼓风干燥和真空干燥,干燥温度为20-80℃,干燥时间为8-14h;干燥方法为鼓风干燥,干燥温度为40-80℃,干燥时间为10-13h。
本申请的精制方法所得产品纯度最后不低于99.90%。
本申请所述精制方法析晶温度为0-30℃,析晶时间为3-15h;析晶温度为10-25℃,析晶时间为5-10h;析晶温度为15-25℃,析晶时间为5-8h;析晶温度为20-25℃,析晶时间为5-8h。
本申请精制方法,所得产品中杂质2-甲基-10H-噻吩-[2,3-B]苯并[1,5]二氮杂卓-4[5H]-酮的含量不高于0.05%。
本申请所述杂质为欧洲药典收载杂质。
实施实例
下面通过实施例进一步阐述本申请的方案,但本申请的保护范围不限于此。
实施例1
搅拌下向10L反应瓶中加入380g奥氮平粗品,加入2.6kg乙腈,加热至回流,全溶。加入19g活性炭,回流脱色0.5h。趁热抽滤,滤液移至10L反应瓶中,自然降温冷却至25℃左右,保持温度析晶5h,抽滤,乙腈洗涤滤饼,滤饼置于40℃鼓风干燥箱干燥13h,得到310g黄色固体,收率81.6%,高效液相色谱监测纯度99.99%(总杂0.008%),杂质2-甲基-10H-噻吩-[2,3-B]苯并[1,5]二氮杂卓-4[5H]-酮含量为0.0019%。
实施例2
搅拌下向10L反应瓶中加入380g奥氮平粗品,加入2.8kg乙腈,加热至回流,全溶。加入19g活性炭,回流脱色1h。趁热抽滤,滤液移至10L反应瓶中,自然降温冷却至20℃左右,保持温度析晶5h,抽滤,乙腈洗涤滤饼,滤饼置于60℃鼓风干燥箱干燥11h,得到325g黄色固体,收率85.5%,高效液相色谱监测纯度100%(总杂0.002%),杂质2-甲基-10H-噻吩-[2,3-B]苯并[1,5]二氮杂卓-4[5H]-酮未检出。
实施例3
搅拌下向10L反应瓶中加入380g奥氮平粗品,加入3kg乙腈,加热至回流,全溶。加入19g活性炭,回流脱色1h。趁热抽滤,滤液移至10L反应瓶中,自然降温后冷却至10℃左右,保持温度析晶8h,抽滤,乙腈洗涤滤饼,滤饼置于80℃鼓风干燥箱干燥10h,得到334g黄色固体,收率87.9%,高效液相色谱监测纯度99.96%(总杂0.04%),杂质2-甲基-10H-噻吩-[2,3-B]苯并[1,5]二氮杂卓-4[5H]-酮含量为0.0040%。
对比实施例
搅拌下向10L反应瓶中加入380g奥氮平粗品,加入3kg丙酮,加热至回流,全溶。加入19g活性炭,回流脱色1h。趁热抽滤,滤液移至10L反应瓶中,自然降温后冷却至10℃左右,保持温度析晶8h,抽滤,丙酮洗涤滤饼,滤饼置于80℃鼓风干燥箱干燥10h,得到295g黄色固体,收率77.6%,高效液相色谱监测纯度98.96%(总杂1.04%),杂质2-甲基-10H-噻吩-[2,3-B]苯并[1,5]二氮杂卓-4[5H]-酮含量0.12%。
Claims (9)
1.奥氮平的精制方法,其特征在于:奥氮平粗品溶解于有机溶剂中,脱色,热抽,滤液冷却析晶一段时间,抽滤,有机溶剂淋洗滤饼,干燥,所得产品中杂质2-甲基-10H-噻吩-[2,3-B]苯并[1,5]二氮杂卓-4[5H]-酮的含量不高于0.05%,产品纯度不低于99.90%。
2.根据权利要求1所述精制方法,重结晶溶剂可选甲醇、乙醇、乙腈、乙酸乙酯,用量为粗品的7-8倍。
3.根据权利要求2所述精制方法,重结晶溶剂为乙腈。
4.根据权利要求1所述精制方法,析晶温度为0-30℃,析晶时间为5-10h。
5.根据权利要求1所述精制方法,脱色回流0.5-1h。
6.根据权利要求5所述精制方法,脱色回流1h。
7.根据权利要求1所述精制方法,干燥为鼓风干燥,干燥温度为40-80℃,干燥时间为8-14h。
8.根据权利要求1所述精制方法,所得产品纯度不低于99.90%。
9.根据权利要求1所述精制方法,所得产品中杂质2-甲基-10H-噻吩-[2,3-B]苯并[1,5]二氮杂卓-4[5H]-酮的含量不高于0.05%。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112110935A (zh) * | 2019-06-20 | 2020-12-22 | 北京万全德众医药生物技术有限公司 | 奥氮平晶型ⅱ的制备方法 |
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| CN112110935A (zh) * | 2019-06-20 | 2020-12-22 | 北京万全德众医药生物技术有限公司 | 奥氮平晶型ⅱ的制备方法 |
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