CN102976949B - 一种2-硝基亚苄基乙酰乙酸甲酯的制备方法 - Google Patents
一种2-硝基亚苄基乙酰乙酸甲酯的制备方法 Download PDFInfo
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- CN102976949B CN102976949B CN201210521934.0A CN201210521934A CN102976949B CN 102976949 B CN102976949 B CN 102976949B CN 201210521934 A CN201210521934 A CN 201210521934A CN 102976949 B CN102976949 B CN 102976949B
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- nitrobenzal
- methyl acetoacetate
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- acetoacetate
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- 0 C*c1c(C)nc(C)c(**)c1-c1ccccc1C=* Chemical compound C*c1c(C)nc(C)c(**)c1-c1ccccc1C=* 0.000 description 2
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- Hydrogenated Pyridines (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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CN201210521934.0A CN102976949B (zh) | 2012-12-07 | 2012-12-07 | 一种2-硝基亚苄基乙酰乙酸甲酯的制备方法 |
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CN201210521934.0A CN102976949B (zh) | 2012-12-07 | 2012-12-07 | 一种2-硝基亚苄基乙酰乙酸甲酯的制备方法 |
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CN102976949A CN102976949A (zh) | 2013-03-20 |
CN102976949B true CN102976949B (zh) | 2015-01-07 |
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CN111253304B (zh) * | 2020-03-24 | 2021-07-06 | 合肥立方制药股份有限公司 | 一种硝苯地平的制备方法 |
CN111233672B (zh) * | 2020-03-24 | 2023-06-27 | 合肥立方制药股份有限公司 | 一种使用组合催化剂合成硝苯地平中间体的方法 |
Citations (1)
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US4600778A (en) * | 1983-04-05 | 1986-07-15 | Bayer Aktiengesellschaft | Process for the preparation of 1,4-dihydropyridinedicarboxylic esters |
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WO2005023768A1 (en) * | 2003-09-11 | 2005-03-17 | Sanmar Speciality Chemicals Limited | An improved process for the preparation of pure nisoldipine |
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US4600778A (en) * | 1983-04-05 | 1986-07-15 | Bayer Aktiengesellschaft | Process for the preparation of 1,4-dihydropyridinedicarboxylic esters |
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Owner name: QINGDAO HUAHAI PHARMACEUTICAL RESEARCH INSTITUTE C Effective date: 20140530 |
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Effective date of registration: 20140530 Address after: 266101 Shandong Province, Qingdao city Laoshan District Four Keyuan Road No. 17 Applicant after: Qingdao Huanghai Pharmaceutical Co., Ltd. Applicant after: QINGDAO HUAHAI PHARMACEUTICAL RESEARCH INSTITUTE CO., LTD. Address before: 266101 Shandong Province, Qingdao city Laoshan District Four Keyuan Road No. 17 Applicant before: Qingdao Huanghai Pharmaceutical Co., Ltd. |
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Effective date of registration: 20171109 Address after: 266101 Shandong Province, Qingdao city Laoshan District Four Keyuan Road No. 17 Patentee after: Qingdao Huanghai Pharmaceutical Co., Ltd. Address before: 266101 Shandong Province, Qingdao city Laoshan District Four Keyuan Road No. 17 Co-patentee before: QINGDAO HUAHAI PHARMACEUTICAL RESEARCH INSTITUTE CO., LTD. Patentee before: Qingdao Huanghai Pharmaceutical Co., Ltd. |