[EN] AZA-EPOXY-GUAIANE DERIVATIVES AND TREATMENT OF CANCER<br/>[FR] DERIVES D'AZA-EPOXY-GUAIANE ET TRAITEMENT DU CANCER
申请人:US HEALTH
公开号:WO2015120140A1
公开(公告)日:2015-08-13
Disclosed is a compound of formula (I) or formula (II): (Formulas should be inserted here) wherein R1-R6 are as defined herein. Also disclosed are a pharmaceutical composition comprising such a compound and a method of treating or preventing cancer in a mammal in need thereof, comprising administering to the mammal a compound of formula (I) or formula (II).
A simple, tandem approach to the construction of pyridine derivatives under metal-free conditions: a one-step synthesis of the monoterpene natural product, (−)-actinidine
followed by concomitant cyclization through an allenylintermediate to afford pyridines in excellent yields, with water as the sole by-product. This mild strategy is also suitable for functionalization of natural products or other advanced intermediates having α,β-unsaturated carbonyl functionality. The utility of the present protocol was showcased with the synthesis of the monoterpene alkaloid, (−)-actinidine
NOVEL METHODS FOR PREPARATION OF SUBSTITUTED PYRIDINES AND RELATED NOVEL COMPOUNDS
申请人:Watkins Edmond Blake
公开号:US20200095245A1
公开(公告)日:2020-03-26
The present invention relates to novel methods of preparation of substituted pyridines and the compounds produced therefrom. In particular, the present invention provides efficient methods for the construction of diversely substituted pyridines, with varying substitution patterns under simple and metal-free conditions with high atom- and pot-economy and excellent functional group tolerance, and which are useful for the synthesis of natural products.
[EN] ENGLERIN DERIVATIVES FOR TREATMENT OF CANCER<br/>[FR] DÉRIVÉS D'ENGLÉRINE DANS LE TRAITEMENT DU CANCER
申请人:US HEALTH
公开号:WO2019010298A1
公开(公告)日:2019-01-10
Disclosed is a compound of formula (I) in which a, R1- R5 and X1 are as described herein. Also disclosed are a pharmaceutical composition containing the compound and a method of using the compound for treating cancer, such as renal cancer.
Catalyst-Controlled Inverse-Electron-Demand Hetero-Diels−Alder Reactions in the Enantio- and Diastereoselective Synthesis of Iridoid Natural Products
作者:David E. Chavez、Eric N. Jacobsen
DOI:10.1021/ol034883l
日期:2003.7.1
[reaction: see text] Iridoid naturalproducts 1-4 are accessed stereoselectively by means of tridentate (Schiff base)Cr(III)-catalyzed hetero-Diels-Alderreactions between ethyl vinyl ether and enantioenriched 5-methyl-1-cyclopentene-1-carboxaldehyde. An efficient route to the aldehyde from citronellal is afforded by the ring-closing metathesis reaction.