申请人:MEIJI SEIKA PHARMA CO., LTD.
公开号:US10000491B2
公开(公告)日:2018-06-19
A process for producing a diazabicyclooctane derivative represented by Formula (IV) and intermediates thereof by carrying out the following steps:
wherein P is an NH protecting group capable of being removed with acid; R1 is 2,5-dioxopyrrolidin-1-yl, 1,3-dioxo-3a,4,7,7a-tetrahydro-1H-isoindol-2(3H)-yl, 1,3-dioxohexahydro-1H-isoindol-2(3H)-yl, or 3,5-dioxo-4-azatricyclo[5.2.1.02.6]dec-8-en-4-yl; R2 is hydrogen, ClCO— or Cl3COCO—; R3 is C1-6 alkyl or heterocyclyl, or forms a 3- to 7-membered heterocyclic ring together with the —O—NH— to which it is attached; and OBn is benzyloxy.
一种通过以下步骤生产式 (IV) 所代表的二氮杂双环辛烷衍生物及其中间体的工艺:
其中 P 为可被酸去除的 NH 保护基;R1 为 2,5-二氧代吡咯烷-1-基、1,3-二氧代-3a,4,7,7a-四氢-1H-异吲哚-2(3H)-基、1,3-二氧代六氢-1H-异吲哚-2(3H)-基或 3,5-二氧代-4-氮杂三环[5.2.1.02.6]癸-8-烯-4-基;R2 是氢、ClCO- 或 Cl3COCO-;R3 是 C1-6 烷基或杂环基,或与所连接的 -O-NH- 一起形成 3-7 元杂环;OBn 是苄氧基。