Enantioselective Total Synthesis of the Natural γ-Tocopherol Metabolite (S)-γ-CEHC [(S)-LLU-α]
摘要:
The asymmetric synthesis of the natural gamma-tocopherol metabolite (S)-gamma-CEHC (1) is described in 10 steps and 18.4% overall yield starting from 2,3-dimethylhydroquinone. The key step is a stereoselective TiCl4-mediated homochiral sulfoxide-directed allylation of ketal (SS)-3 to efficiently generate the challenging C-2 stereogenic carbon of chroman (SS,S)-2 with the correct absolute configuration.
Enantioselective Total Synthesis of the Natural γ-Tocopherol Metabolite (S)-γ-CEHC [(S)-LLU-α]
摘要:
The asymmetric synthesis of the natural gamma-tocopherol metabolite (S)-gamma-CEHC (1) is described in 10 steps and 18.4% overall yield starting from 2,3-dimethylhydroquinone. The key step is a stereoselective TiCl4-mediated homochiral sulfoxide-directed allylation of ketal (SS)-3 to efficiently generate the challenging C-2 stereogenic carbon of chroman (SS,S)-2 with the correct absolute configuration.
申请人:University College Cardiff Consultants Limited
公开号:EP2655653B1
公开(公告)日:2015-11-18
[EN] METHODS AND COMPOUNDS FOR DETECTING CANCER<br/>[FR] PROCÉDÉS ET COMPOSÉS POUR DÉTECTER UN CANCER
申请人:UNIV CARDIFF
公开号:WO2012085532A2
公开(公告)日:2012-06-28
The invention relates to a method for diagnosing cancer, particularly bladder or prostate cancer using compounds of general formula (I): wherein R1, R2, R3, R4, R5 X, Y and z are as defined herein.