[EN] PROCESSES FOR THE PREPARATION OF ORTHO-ALLYLATED HYDROXY ARYL COMPOUNDS<br/>[FR] PROCÉDÉS DE PRÉPARATION DE COMPOSÉS HYDROXY-ARYLE ORTHO-ALLYLÉS
申请人:UNIV MCMASTER
公开号:WO2021237371A1
公开(公告)日:2021-12-02
The present application describes process for preparing an ortho-allylated hydroxy aryl compounds such as compounds of Formula (I) by reacting an allylic alcohol with a hydroxy aryl compound in the presence of aluminum compound selected from alumina and aluminum alkoxides and in a non-protic solvent wherein at least one carbon atom ortho to the hydroxy group in the hydroxy aryl compound is unsubstituted. The present application also includes compounds of Formula (I).
Meroterpenoid total synthesis: Conversion of geraniol and farnesol into amorphastilbol, grifolin and grifolic acid by dioxinone- β -keto-acylation, palladium catalyzed decarboxylative allylic rearrangement and aromatization
Biomimetic total syntheses of resorcinols amorphastilbol, grifolin and grifolic acid have been completed in four steps starting from geraniol and farnesol without the use of phenolic protection. The key steps involve C-acylation of dioxinone-β-keto esters, followed by palladium catalyzed decarboxylative allylic rearrangement and biomimetic aromatization.
But DNMT1 inhibitors are rare except for the highly toxic nucleoside derivates. Grifolin is a unique natural product which down-regulates DNMT1 and has low toxicity. However, the poor solubility and stability of grifolin limit its application. Herein, we synthesized PEG5-Grifolin as a water-miscible prodrug of grifolin. The half-life of PEG5-Grifolin at 25 °C was considerably extended, revealing excellent
글리폴린의 신규한 합성방법과 이를 유효성분으로 함유하는 비만 또는 당뇨 예방 및 치료용 약학적 조성물
申请人:POSTECH Research and Business Development Foundation 포항공과대학교 산학협력단(220040433361) BRN ▼506-82-07303
公开号:KR20180080728A
公开(公告)日:2018-07-13
본 발명은 글리폴린(Glifolin)의 신규한 합성방법 및 이를 유효성분으로 함유하는 비만 또는 당뇨 예방 및 치료용 약학적 조성물에 관한 것으로, 특히 고지방식이 비만 마우스 모델에서 체중증가 억제, 지방축적 감소, 지방세포 크기 감소, 지방간 개선, 혈중 지질 개선, 혈당 감소 및 인슐린 저항성 감소의 효과를 나타내 항비만 및 항당뇨 기능성이 뛰어난 효과가 있다.