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    • 7. 发明申请
    • Process for total synthesis of pladienolide B and pladienolide D
    • 丙二烯内酯B和普拉二烯内酯D的全合成方法
    • US20080021226A1
    • 2008-01-24
    • US11580047
    • 2006-10-13
    • Regina KanadaDaisuke ItoTakashi SakaiNaoki AsaiYoshihiko KotakeJun Niijima
    • Regina KanadaDaisuke ItoTakashi SakaiNaoki AsaiYoshihiko KotakeJun Niijima
    • C07D313/00C07D303/02
    • C07D493/04C07D303/12C07D303/14C07D313/00C07D315/00C07D405/12C07D407/06Y02P20/55
    • [Problems to be Solved]To provide an effective process for total synthesis of pladienolide B and pladienolide D having excellent anti-tumor activity and to provide useful intermediates in the above-described process. [Measure for Solving the Problem]A process for producing a compound represented by Formula (11): wherein P1, P7, P8, P9 and R1 are the same as defined below, characterized by including reacting a compound represented by Formula (12): wherein P7 means a hydrogen atom or a protecting group for hydroxy group; R1 means a hydrogen atom or a hydroxy group, with a compound represented by Formula (13): wherein P1 means a hydrogen atom or a protecting group for hydroxy group; P8 means a hydrogen atom, an acetyl group or a protecting group for hydroxy group; P9 means a hydrogen atom or a protecting group for hydroxy group; or P8 and P9 may form together a group represented by a formula: wherein R5 means a phenyl group which may have a substituent, in the presence of a catalyst.
    • [待解决的问题]为了提供具有优异的抗肿瘤活性的普拉二烯内酯B和普拉二烯内酯D的全合成的有效方法,并且在上述方法中提供有用的中间体。 [解决问题的措施]制备由式(11)表示的化合物的方法:其中P 1,P 2,P 3, ,其中P 9和R 12与下述定义相同,其特征在于包括使由式(12)表示的化合物:其中P 是指氢原子或羟基的保护基; R 1表示氢原子或羟基,与式(13)表示的化合物:其中P 1是氢原子或羟基的保护基; “8”表示氢原子,乙酰基或羟基保护基; “9”表示氢原子或羟基的保护基; 或者P 9和P 9可以一起形成由下式表示的基团:其中R 5表示可以具有取代基的苯基, 在催化剂存在下。