The present invention relates to novel tricyclic compounds which can bind to FXR and act as modulators of the FXR, or a stereoisomer, a geometric isomer, a tautomer, an N-oxide, a hydrate, a solvate, a metabolite, a pharmaceutically acceptable salt or a prodrug thereof, and the uses of the compounds for the treatment of diseases and/or conditions mediated by FXR. The invention further provides a pharmaceutical composition containing the compound disclosed herein and a method of treatment of diseases and/or conditions mediated by FXR comprising administering the compound or the pharmaceutical composition.
Synthesis and Wagner-Meerwein Rearrangement of 9-(α-Hydroxyalkyl)xanthenes to 10-Substituted Dibenz[<i>b</i>,<i>f</i>]oxepins: Scope, Limitations and ab initio Calculations
作者:Thomas Storz、Eric Vangrevelinghe、Peter Dittmar
DOI:10.1055/s-2005-872110
日期:——
9-lithioxanthene to functionalized acetaldehydes, or, via a new method, (b) addition of carbanions to xanthene-9-carbaldehyde. A practical and efficient synthesis was found for the latter. Under acidic catalysis, the majority of the addition products underwent Wagner-Meerwein rearrangement to give either the corresponding, 10-substituted dibenz[b,f]oxepin 6 or the xanthenylid-9-ene β-elimination product 7. The first
STUDIES IN THE WAGNER–MEERWEIN REARRANGEMENT. PART II
作者:F. A. L. Anet、P. M. G. Bavin
DOI:10.1139/v57-147
日期:1957.10.1
Dibenz[b,f]oxepin and its 10-methyl derivative have been prepared by ring expansion of suitable xanthene derivatives. 2-Flurophenanthrene was synthesized from 2-fluorofluorene.