A symmetric desymmetrization of meso-vic-diols was performed by tosylation in the presence of copper(II) triflate and (R,R)-Ph-BOX as a catalyst. The method was successfully applied to asymmetric desymmetrization of cyclic and acyclic meso-vic-diols in high enantioselectivity with up to >99% ee. (C) 2007 Elsevier Ltd. All rights reserved.
CONSTRAINED TRICYCLIC SULFONAMIDES
申请人:ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
公开号:US20170015630A1
公开(公告)日:2017-01-19
Tricyclic chemical modulators of protein phosphatase 2A are disclosed. The compounds are useful to treat cancer, age-onset proteotoxicity, stress-induced depression, inflammation, and acne. The compounds are of the following phenothiazine and dibenzoazepine compounds and similar genera: