CN112898203B - 一种连续流合成氯硝西泮的制备方法 - Google Patents
一种连续流合成氯硝西泮的制备方法 Download PDFInfo
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- CN112898203B CN112898203B CN202110316476.6A CN202110316476A CN112898203B CN 112898203 B CN112898203 B CN 112898203B CN 202110316476 A CN202110316476 A CN 202110316476A CN 112898203 B CN112898203 B CN 112898203B
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- clonazepam
- reactor
- iodide
- continuous flow
- tubular reactor
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- DGBIGWXXNGSACT-UHFFFAOYSA-N clonazepam Chemical compound C12=CC([N+](=O)[O-])=CC=C2NC(=O)CN=C1C1=CC=CC=C1Cl DGBIGWXXNGSACT-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 229960003120 clonazepam Drugs 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 10
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 10
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 50
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 claims abstract description 45
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 21
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims abstract description 18
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000012295 chemical reaction liquid Substances 0.000 claims abstract description 14
- 239000012074 organic phase Substances 0.000 claims abstract description 14
- 238000005086 pumping Methods 0.000 claims abstract description 14
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 21
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 13
- 230000014759 maintenance of location Effects 0.000 claims description 13
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 10
- 239000003960 organic solvent Substances 0.000 claims description 6
- 239000012535 impurity Substances 0.000 abstract description 18
- 239000000539 dimer Substances 0.000 abstract description 16
- 239000007858 starting material Substances 0.000 abstract description 15
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000003814 drug Substances 0.000 abstract description 3
- 230000035484 reaction time Effects 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 30
- 238000001514 detection method Methods 0.000 description 17
- 239000000543 intermediate Substances 0.000 description 14
- 239000000243 solution Substances 0.000 description 13
- 230000001276 controlling effect Effects 0.000 description 12
- 238000004128 high performance liquid chromatography Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 5
- 206010010904 Convulsion Diseases 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000002194 synthesizing effect Effects 0.000 description 3
- 102000004300 GABA-A Receptors Human genes 0.000 description 2
- 108090000839 GABA-A Receptors Proteins 0.000 description 2
- 239000001961 anticonvulsive agent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 206010001541 Akinesia Diseases 0.000 description 1
- 206010021750 Infantile Spasms Diseases 0.000 description 1
- 201000006792 Lennox-Gastaut syndrome Diseases 0.000 description 1
- 206010034759 Petit mal epilepsy Diseases 0.000 description 1
- 208000028311 absence seizure Diseases 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000003556 anti-epileptic effect Effects 0.000 description 1
- 229940049706 benzodiazepine Drugs 0.000 description 1
- 150000001557 benzodiazepines Chemical class 0.000 description 1
- 210000003169 central nervous system Anatomy 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 208000013257 developmental and epileptic encephalopathy Diseases 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 201000009028 early myoclonic encephalopathy Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 206010015037 epilepsy Diseases 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 208000028492 myoclonic seizure Diseases 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D223/00—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom
- C07D223/14—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom condensed with carbocyclic rings or ring systems
- C07D223/16—Benzazepines; Hydrogenated benzazepines
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN202110304796 | 2021-03-23 | ||
CN202110304796X | 2021-03-23 |
Publications (2)
Publication Number | Publication Date |
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CN112898203A CN112898203A (zh) | 2021-06-04 |
CN112898203B true CN112898203B (zh) | 2022-04-12 |
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CN202110316476.6A Active CN112898203B (zh) | 2021-03-23 | 2021-03-25 | 一种连续流合成氯硝西泮的制备方法 |
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CN (1) | CN112898203B (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN116023342B (zh) * | 2021-10-26 | 2024-06-25 | 江苏昱林生物科技有限公司 | 一种高纯度氯硝西泮的制备方法 |
CN114369061B (zh) * | 2022-01-28 | 2024-05-03 | 济南同路医药科技发展有限公司 | 一种氯硝西泮有关物质b的制备方法 |
CN114656410A (zh) * | 2022-03-02 | 2022-06-24 | 济南同路医药科技发展有限公司 | 一种氯硝西泮杂质及其制备方法 |
CN114702451B (zh) * | 2022-03-29 | 2024-05-14 | 国药集团国瑞药业有限公司 | 一种氯硝西泮及其中间体的制备方法 |
CN114702452B (zh) * | 2022-03-29 | 2024-03-19 | 国药集团国瑞药业有限公司 | 一种氯硝西泮的制备方法、其中间体和应用 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105663138A (zh) * | 2016-04-23 | 2016-06-15 | 贺玉皓 | 一种氯硝西泮的药物组合物及其医药用途 |
CN109678746A (zh) * | 2018-12-27 | 2019-04-26 | 南京诺希生物科技有限公司 | 一种抗焦虑药劳拉西泮中间体简便合成工艺 |
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PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: A preparation method of continuous flow synthesis of clonazepam Effective date of registration: 20220718 Granted publication date: 20220412 Pledgee: Postal Savings Bank of China Limited Jinan Branch Pledgor: JINAN TONGLU PHARMACEUTICAL TECHNOLOGY DEVELOPMENT CO.,LTD. Registration number: Y2022980010683 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20220412 Pledgee: Postal Savings Bank of China Limited Jinan Branch Pledgor: JINAN TONGLU PHARMACEUTICAL TECHNOLOGY DEVELOPMENT CO.,LTD. Registration number: Y2022980010683 |
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PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A preparation method for continuous flow synthesis of clonazepam Granted publication date: 20220412 Pledgee: Postal Savings Bank of China Limited Jinan Branch Pledgor: JINAN TONGLU PHARMACEUTICAL TECHNOLOGY DEVELOPMENT CO.,LTD. Registration number: Y2024980025692 |