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    • 9. 发明授权
    • 6-VINYLIDENE-HEXAHYDRO-PYRROLIZIN-3-ONE DERIVATIVES AND THEIR PREPARATION METHOD
    • 6-乙烯基 - 六氢吡喃-3-酮衍生物及其制备方法
    • KR100743256B1
    • 2007-07-20
    • KR20060046152
    • 2006-05-23
    • KOREA INST SCI & TECH
    • CHO YONG SEOCHOO HYUN AHPAE AE NIMCHA JOO HWANKIM SANG HEEKIM HYUNG GYU
    • C07D487/04
    • Novel 6-vinylidene-hexahydro-pyrrolizin-3-one derivatives and their preparation method are provided to serve intermediates for synthesis of various natural products and development of new drugs by introducing various substituents to the C-6 site. The 6-vinylidene-hexahydro-pyrrolizin-3-one derivatives represented by the formula(1) are provided, wherein R1 and R2 are each independently hydrogen, C1-C6 alkyl group or C1-C6 alkoxy group or form a 5- to 10-membered aliphatic or aromatic hydrocarbon ring together; and the 6-vinylidene-hexahydro-pyrrolizin-3-one derivatives are prepared by subjecting hydroxylactam containing trimethylsilylmethyl-allene to intramolecular acyliminium cyclization in the presence of Lewis acid selected from trimethylsilyl trifluoromethanesulfonate, borontrifluoride etherate and indium halide in a reaction solvent selected from dichloromethane, chloroform and diethylether at 0-25 deg.C.
    • 提供了新的6-亚乙烯基 - 六氢 - 吡咯烷-3-酮衍生物及其制备方法,为C-6位点引入各种取代基提供合成各种天然产物和开发新药的中间体。 提供由式(1)表示的6-亚乙烯基 - 六氢 - 吡咯烷-3-酮衍生物,其中R 1和R 2各自独立地为氢,C 1 -C 6烷基或C 1 -C 6烷氧基或形成5-至10 一起形成脂族或芳族烃环; 6-亚乙烯基 - 六氢 - 吡咯烷-3-酮衍生物是通过在选自三氟甲磺酸三甲基甲硅烷基酯,三氟化硼醚合物和卤化铟的路易斯酸存在下,在含有三甲基甲硅烷基甲基 - 丙烯的三羟甲基甲硅烷基甲基 - ,氯仿和乙醚在0-25℃。
    • 10. 发明公开
    • RING-FUSED LACTAM DERIVATIVES WITH A DIEXOMETHYLENE MOIETY AND THEIR PREPARATION METHOD
    • 具有二甲基乙烯基环的环状乳糖衍生物及其制备方法
    • KR20070113384A
    • 2007-11-29
    • KR20060046149
    • 2006-05-23
    • KOREA INST SCI & TECH
    • CHO YONG SEOCHOO HYUN AHCHA JOO HWANPAE AE NIMKIM SANG HEEKIM HYUNG GYU
    • C07D471/04
    • C07D471/04C07D471/14
    • A ring-fused lactam derivative with a diexomethylene moiety is provided to be very useful in medicine as well as precision chemistry industries and be useful as an intermediate for preparing an important multicyclic compound through the Diels-Alder reaction. And a method for preparing the same is provided to mass-produce the desired product industrially through a relatively simple process. A ring-fused lactam derivative with a diexomethylene moiety is represented by the formula(1), wherein R1 is H or C1-6 alkyl; each R2 and R3 is H, C1-6 alkyl or C1-6 alkoxy, or the R2 and R3 are bound to each other to form a pentagonal to a decagonal aliphatic or an aromatic hydrocarbon ring; and n is 0 or 1. A method for preparing the compound of the formula(1) comprises a step of subjecting hydroxy lactam including trimethylsilylmethyl-allene represented by the formula(2) to the intramolecular acyliminium cyclization in the presence of Lewis acid.
    • 提供具有阴离子亚甲基部分的稠环内酰胺衍生物在医药和精密化学工业中非常有用,并且可用作通过Diels-Alder反应制备重要多环化合物的中间体。 提供了制备该方法的方法,通过相对简单的方法在工业上大量生产所需的产物。 具有阴离子亚甲基部分的环稠合内酰胺衍生物由式(1)表示,其中R 1是H或C 1-6烷基; 每个R 2和R 3是H,C 1-6烷基或C 1-6烷氧基,或者R 2和R 3彼此结合以形成五边形至十五烷基或芳族烃环; 并且n为0或1.制备式(1)化合物的方法包括在路易斯酸存在下,将包含式(2)表示的三甲基甲硅烷基甲基 - 丙烯的羟基内酰胺进行分子内酰基亚胺鎓环化的步骤。