Isoindoline derivatives and processes for their preparation
申请人:Banyu Pharmaceutical Co., Ltd.
公开号:US04987235A1
公开(公告)日:1991-01-22
A compound having the formula: ##STR1## wherein R is a hydrogen atom, a lower alkyl group, an alkanoyl group, an aralkyl group, an alkylsulfonyl group or an arylsulfonyl group, and R.sup.1 is a hydrogen atom or a protecting group for a hydroxyl group, or a salt thereof.
Process for the production of isoindoline derivatives, novel
申请人:Banyu Pharmaceutical Co., Ltd.
公开号:US04958029A1
公开(公告)日:1990-09-18
A process for producing a compound of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom, a lower alkyl group or an aralkyl group, and R.sup.2 is a hydrogen atom or a hydroxyl-protecting group, or a salt thereof, which comprises removing from a compound of the formula: ##STR2## wherein R.sup.3 is a hydrogen atom or a hydroxyl-protecting group, R.sup.4 and R.sup.5 which may be the same or different are N-protecting groups selected from the group consisting of lower alkyl groups and aralkyl groups, and X.sup..crclbar. is an anion, the N-protecting group(s), if necessary, together with the hydroxyl-protecting group.
micro-PET/CT imaging of [18F]1 in rats indicated excellent binding specificity to the σ2 receptors in vivo. Micro-PET/CT imaging of [18F]1 in the U87MG glioma xenograft model demonstrated clear tumor visualization with high tumor uptake and tumor-to-background ratio. Co-injection with CM398 (5 μmol/kg) led to a remarkable reduction of tumor uptake (80%, 60–70 min), indicating high specific binding
Process for the production of isoindoline derivatives, novel intermediates and process for their production
申请人:Banyu Pharmaceutical Co., Ltd.
公开号:EP0275064A2
公开(公告)日:1988-07-20
A process for producing a compound of the formula:
wherein R¹ is a hydrogen atom, a lower alkyl group or an aralkyl group, and R² is a hydrogen atom or a hydroxyl-protecting group, or a salt thereof, which comprises removing from a compound of the formula:
wherein R³ is a hydrogen atom or a hydroxyl-protecting group, R⁴ and R⁵ which may be the same or different are N-protecting groups selected from the group consisting of lower alkyl groups and aralkyl groups, and X⊖ is an anion, the N-protecting group(s), if necessary, together with the hydroxyl-protecting group.