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    • 3. 发明申请
    • 2-AMINO-9-(2-SUBSTITUTED ETHYL)PURINES AND PREPARING METHODS FOR 9-[4-ACETOXY-3-(ACETOXYMETHYL)BUT-1-YL]- 2- AMINOPURINE USING THE SAME
    • 2-氨基-9-(2-取代的乙醇)和9- [4-乙酰氧基-3-(乙酰氧基甲基)丁-1-炔基] -2-氨基嘌呤的制备方法
    • WO2004110343A2
    • 2004-12-23
    • PCT/KR2004/001405
    • 2004-06-12
    • KYUNGDONG PHARM. CO., LTD.LEE, Byoung-SukSHIN, Sang-HoonPARK, Jong-Sik
    • LEE, Byoung-SukSHIN, Sang-HoonPARK, Jong-Sik
    • A61K
    • C07D473/32
    • The present invention relates to a new compound of 2-amino-9-(2-substituted ethyl)purine and an effective method for preparing 9-[4-acetoxy-3-(acetoxymethyl)but-1-yl]-2-aminopurin (famciclovir) using the same. The 2-amino-9-(2-substituted ethyl)purine according to the invention is represented by the following formula (II'): (Formula II') wherein R is a hydroxy, halogen, mesyloxy or tosyloxy group. The inventive method for the preparation of famciclovir comprises the steps of halogenating 2-amino-9-(2-substituted ethyl)purine to give 2-amino-9-(2-halogenoethyl)purine, and reacting the halogenated compound with diethylmalonate. The inventive preparation method allows famciclovir, a purine derivative drug with effective antiviral activity, to be prepared in a high selectivity of 100% in a pure form by using the inventive new compound of 2-amino-9-(2-substituted ethyl)purine. In addition, the inventive method allows the utilization of relatively mild reaction conditions, and thus, has high industrial process efficiency.
    • 本发明涉及2-氨基-9-(2-取代乙基)嘌呤的新化合物和制备9- [4-乙酰氧基-3-(乙酰氧基甲基)丁-1-基] -2-氨基嘌呤的有效方法 (泛昔洛韦)使用相同。 根据本发明的2-氨基-9-(2-取代的乙基)嘌呤由下式(II')表示:(式II')其中R是羟基,卤素,甲磺酰氧基或甲苯磺酰氧基。 用于制备泛昔洛韦的本发明方法包括以下步骤:将2-氨基-9-(2-取代的乙基)嘌呤卤化得到2-氨基-9-(2-卤代乙基)嘌呤,并使该卤代化合物与丙二酸二乙酯反应。 本发明的制备方法允许泛昔洛韦(一种具有有效抗病毒活性的嘌呤衍生物)通过使用本发明新的2-氨基-9-(2-取代的乙基)嘌呤化合物以高纯度的100%选择性制备 。 此外,本发明的方法允许利用相对温和的反应条件,因此具有高工业过程效率。
    • 4. 发明申请
    • DEVICE AND METHOD FOR RECORDING AND RECONSTRUCTING DIGITAL HOLOGRAM WITHOUT VIRTUAL IMAGE
    • 没有虚拟图像记录和重新编码数字HOLOGRAM的设备和方法
    • WO2008115026A1
    • 2008-09-25
    • PCT/KR2008/001601
    • 2008-03-21
    • APNTECH CO., LTDSHIN, Sang-HoonCHOI, Seung-Kil
    • SHIN, Sang-HoonCHOI, Seung-Kil
    • G11B7/0065
    • G03H1/0866G03H1/0443G03H2001/005
    • The present invention relates to a device and method for digital hologram recording and reconstructing that solves the problem of overlapping real and virtual images when reconstructing a hologram with a digital hologram device such as a digital hologram microscope. The device comprises a hologram reconstructing module for dividing the hologram area recorded on the CCD, recording in the interim each divided area whereby for each of the areas the pixel values of the rest of the areas except for that divided area is set to zero, outputting a reconstructed image with the virtual image removed by integrating each of the reconstructed hologram images recorded in the interim, and a control unit for controlling the hologram recording on the CCD, including dividing, mid-recording, and integration operations of the hologram reconstructing module, thus leading to perfect holographic information of the object.
    • 本发明涉及一种用于数字全息图记录和重构的装置和方法,该装置和方法解决了使用诸如数字全息显微镜的数字全息图装置重建全息图时重叠实像和虚像的问题。 该装置包括全息图重建模块,用于分割记录在CCD上的全息图区域,在每个划分区域的中间记录,由此对于每个区域,除了该分割区域之外的其余区域的像素值被设置为零,输出 通过对在中间记录的每个重建全息图像进行积分而去除虚像的重建图像,以及控制单元,用于控制CCD上的全息图记录,包括全息图重建模块的分割,中间记录和积分操作, 从而导致物体的完美全息信息。
    • 6. 发明申请
    • 2-AMINO-9-(2-SUBSTITUTED ETHYL)PURINES AND PREPARING METHODS FOR 9-[4-ACETOXY-3-(ACETOXYMETHYL)BUT-1-YL]- 2- AMINOPURINE USING THE SAME
    • 2-氨基-9-(2-取代的乙醇)和9- [4-乙酰氧基-3-(乙酰氧基甲基)丁-1-炔基] -2-氨基嘌呤的制备方法
    • WO2004110343A3
    • 2005-09-01
    • PCT/KR2004001405
    • 2004-06-12
    • KYUNGDONG PHARM CO LTDLEE BYOUNG-SUKSHIN SANG-HOONPARK JONG-SIK
    • LEE BYOUNG-SUKSHIN SANG-HOONPARK JONG-SIK
    • A61K20060101C07D473/32
    • C07D473/32
    • The present invention relates to a new compound of 2-amino-9-(2-substituted ethyl)purine and an effective method for preparing 9-[4-acetoxy-3-(acetoxymethyl)but-1-yl]-2-aminopurin (famciclovir) using the same. The 2-amino-9-(2-substituted ethyl)purine according to the invention is represented by the following formula (II'): (Formula II') wherein R is a hydroxy, halogen, mesyloxy or tosyloxy group. The inventive method for the preparation of famciclovir comprises the steps of halogenating 2-amino-9-(2-substituted ethyl)purine to give 2-amino-9-(2-halogenoethyl)purine, and reacting the halogenated compound with diethylmalonate. The inventive preparation method allows famciclovir, a purine derivative drug with effective antiviral activity, to be prepared in a high selectivity of 100% in a pure form by using the inventive new compound of 2-amino-9-(2-substituted ethyl)purine. In addition, the inventive method allows the utilization of relatively mild reaction conditions, and thus, has high industrial process efficiency.
    • 本发明涉及2-氨基-9-(2-取代乙基)嘌呤的新化合物和制备9- [4-乙酰氧基-3-(乙酰氧基甲基)丁-1-基] -2-氨基嘌呤的有效方法 (泛昔洛韦)使用相同。 根据本发明的2-氨基-9-(2-取代的乙基)嘌呤由下式(II')表示:(式II')其中R是羟基,卤素,甲磺酰氧基或甲苯磺酰氧基。 用于制备泛昔洛韦的本发明方法包括以下步骤:将2-氨基-9-(2-取代的乙基)嘌呤卤化得到2-氨基-9-(2-卤代乙基)嘌呤,并使该卤代化合物与丙二酸二乙酯反应。 本发明的制备方法允许泛昔洛韦(一种具有有效抗病毒活性的嘌呤衍生物)通过使用本发明新的2-氨基-9-(2-取代的乙基)嘌呤化合物以高纯度的100%选择性制备 。 此外,本发明的方法允许利用相对温和的反应条件,因此具有高工业过程效率。