会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明公开
    • (S)-OXIRACETAM CRYSTAL FORM III, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
    • (S)-OXIRACETAM晶体形式III,其制备方法及其应用
    • EP3135666A1
    • 2017-03-01
    • EP14859924.4
    • 2014-10-27
    • Chongqing Runze Pharmaceutical Company Limited
    • YE, Lei
    • C07D207/273A61K31/4015A61P25/28
    • C07D207/273A61K31/4015C07B2200/13
    • (S)-4-hydroxy-2-oxo-1-pyrrolidine crystal form III (called crystal form III of (S)-oxiracetam for short) has diffraction peaks at diffraction angles 2θ, wherein the diffraction angles 2θ are equal to 10.54, 13.70, 14.44, 15.60, 17.12, 18.88, 19.24, 20.66, 20.84, 21.18, 21.82, 22.94, 23.24, 24.88, 27.20, 27.48, 28.24, 30.46, 30.80, 31.52, 32.00, 32.34, 32.90, 33.20, 34.40, 34.62, 37.30, 37.50, 38.28, 38.96, and 40.02°. The (S)-oxiracetam crystal form III of the present invention has an obvious effect on memory dysfunction, is dissolved in water fast, has high bioavailability, and can be used to prepare various pharmaceutical compositions. The (S)-oxiracetam crystal form III obtained by using the preparation method of the present invention is high in purity. The preparation method of the present invention is performed in a mild condition, is easy in operation, introduces less impurities, has desirable reproducibility, is easily controlled during production, and is applicable to industrial production.
    • (S)-4-羟基-2-氧代-1-吡咯烷晶形III(称为晶形(S) - 奥拉西坦III的简称)具有衍射峰的衍射角2θ,其中,所述衍射角2θ等于10.54, 13.70,14.44,15.60,17.12,18.88,19.24,20.66,20.84,21.18,21.82,22.94,23.24,24.88,27.20,27.48,28.24,30.46,30.80,31.52,32.00,32.34,32.90,33.20,34.40,34.62, 37.30,37.50,38.28,38.96和40.02°。 本发明的(S) - 奥拉西坦晶型III对记忆功能障碍具有明显的作用,快速溶于水,生物利用度高,可用于制备各种药物组合物。 使用本发明的制备方法得到的(S) - 奥拉西坦晶型III纯度高。 本发明的制备方法在温和条件下进行,操作简单,杂质少,再现性好,在生产过程中易于控制,适用于工业生产。
    • 10. 发明公开
    • PREPARATION METHOD FOR MEDICAL POROUS TANTALUM IMPLANT MATERIAL
    • VERFAHREN ZUR HERSTELLUNGPORÖSERMEDISINISCHER TANTALIMPLANTATMATERIALIEN
    • EP2762173A1
    • 2014-08-06
    • EP12835956.9
    • 2012-09-27
    • Chongqing Runze Pharmaceutical Company Limited
    • YE, Lei
    • A61L27/04A61L27/56C22C1/08C22C27/02
    • A61L27/047A61L27/56A61L2400/08A61L2430/02A61L2430/24B22F3/1137B22F2999/00B32B5/18C22C27/02B22F3/22B22F2202/01
    • A preparation method for medical porous tantalum implant material is provided, which includes mixing polyethylene glycol aqueous solution and tantalum powder to form tantalum slurry, casting the tantalum slurry into an organic foam body through vibrant pressurization, and going through steps of drying, degreasing, vacuum sintering and thermal treatment to obtain the porous tantalum. The solution is a 2-8 wt% polyethylene glycol aqueous solution, the frequency of vibration is 20-80 times/min, the thermal treatment is performed under 10 -4 -10 -3 Pa of vacuity and the temperature is increased to 800-900°C at a rate of 10-20°C/min and keeping the temperature for 240-480 minutes, then decreased to 400°C at a rate of 2-5°C/min and keeping the temperature for 120-300 minutes, and cooled down to the room temperature naturally in the furnace. Accordingly, the porous tantalum made by the method of the present invention is a suitable for medical implantation as an alternative support of bony tissue, and assured good biocompatibility and mechanical properties. Furthermore, the reagents and the organic foam body, which are can be decomposed and resulting no residue during sintering, are used to guarantee the bio-safety of the medical porous tantalum implant material.
    • 提供了一种医用多孔钽植入材料的制备方法,其包括将聚乙二醇水溶液和钽粉混合以形成钽浆料,通过充分的加压将钽浆浇铸成有机泡沫体,并经过干燥,脱脂,真空 烧结和热处理得到多孔钽。 溶液为2-8重量%聚乙二醇水溶液,振动频率为20-80次/ min,热处理在10 -4 -10 -3 Pa的真空下进行,温度升至800〜 900℃,速度为10-20℃/ min,保持温度为240-480分钟,然后以2-5℃/ min的速度降至400℃,保持温度为120-300分钟 并在炉内自然冷却至室温。 因此,通过本发明的方法制造的多孔钽适用于医学植入,作为骨组织的替代支持,并确保良好的生物相容性和机械性能。 此外,可以将分解并在烧结期间不产生残留物的试剂和有机泡沫体用于保证医用多孔钽植入材料的生物安全性。