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; R
1
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[5.2.1.0
2.6
]dec-8-en-4-yl; R
2
is hydrogen, ClCO— or Cl
3
COCO—; R
3
is C
1-6
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.
通过以下步骤生产由公式(IV)表示的二氮杂双
环辛烷衍
生物及其中间体:
其中P是可用酸去除的NH保护基;R1是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,或与其连接的-O-NH-一起形成3-至7-成员的杂环;OBn是苄氧基。